3190 lines
131 KiB
C++
3190 lines
131 KiB
C++
/*
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Speeduino - Simple engine management for the Arduino Mega 2560 platform
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Copyright (C) Josh Stewart
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A full copy of the license may be found in the projects root directory
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*/
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/*
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This file contains the various crank and cam wheel decoder functions.
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Each decoder must have the following 4 functions (Where xxxx is the decoder name):
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* triggerSetup_xxx - Called once from within setup() and configures any required variables
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* triggerPri_xxxx - Called each time the primary (No. 1) crank/cam signal is triggered (Called as an interrupt, so variables must be declared volatile)
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* triggerSec_xxxx - Called each time the secondary (No. 2) crank/cam signal is triggered (Called as an interrupt, so variables must be declared volatile)
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* getRPM_xxxx - Returns the current RPM, as calculated by the decoder
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* getCrankAngle_xxxx - Returns the current crank angle, as calculated b the decoder
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And each decoder must utlise at least the following variables:
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toothLastToothTime - The time (In uS) that the last primary tooth was 'seen'
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*
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*/
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#include <limits.h>
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#include "globals.h"
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#include "decoders.h"
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#include "scheduledIO.h"
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#include "scheduler.h"
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#include "crankMaths.h"
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/*
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*
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* whichTooth - 0 for Primary (Crank), 1 for Secondary (Cam)
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*/
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static inline void addToothLogEntry(unsigned long toothTime, bool whichTooth)
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{
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//High speed tooth logging history
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if( (currentStatus.toothLogEnabled == true) || (currentStatus.compositeLogEnabled == true) )
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{
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bool valueLogged = false;
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if(currentStatus.toothLogEnabled == true)
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{
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//Tooth log only works on the Crank tooth
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if(whichTooth == TOOTH_CRANK)
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{
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toothHistory[toothHistoryIndex] = toothTime; //Set the value in the log.
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valueLogged = true;
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}
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}
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else if(currentStatus.compositeLogEnabled == true)
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{
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compositeLogHistory[toothHistoryIndex] = 0;
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if(READ_PRI_TRIGGER() == true) { BIT_SET(compositeLogHistory[toothHistoryIndex], COMPOSITE_LOG_PRI); }
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if(READ_SEC_TRIGGER() == true) { BIT_SET(compositeLogHistory[toothHistoryIndex], COMPOSITE_LOG_SEC); }
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if(whichTooth == TOOTH_CAM) { BIT_SET(compositeLogHistory[toothHistoryIndex], COMPOSITE_LOG_TRIG); }
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if(currentStatus.hasSync == true) { BIT_SET(compositeLogHistory[toothHistoryIndex], COMPOSITE_LOG_SYNC); }
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toothHistory[toothHistoryIndex] = micros() - compositeLastToothTime;
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compositeLastToothTime = micros();
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valueLogged = true;
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}
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//If there has been a value logged above, update the indexes
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if(valueLogged == true)
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{
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if(toothHistoryIndex == (TOOTH_LOG_BUFFER-1)) { toothHistoryIndex = 0; }
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else { toothHistoryIndex++; }
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uint16_t absoluteToothHistoryIndex = toothHistoryIndex;
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if(toothHistoryIndex < toothHistorySerialIndex)
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{
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//If the main history index is lower than the serial index, it means that this has looped. To calculate the delta between the two indexes, add the buffer size back on
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absoluteToothHistoryIndex += TOOTH_LOG_BUFFER;
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}
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//Check whether the current index is ahead of the serial index by at least the size of the log
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if( (absoluteToothHistoryIndex - toothHistorySerialIndex) >= TOOTH_LOG_SIZE ) { BIT_SET(currentStatus.status1, BIT_STATUS1_TOOTHLOG1READY); }
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else { BIT_CLEAR(currentStatus.status1, BIT_STATUS1_TOOTHLOG1READY); } //Tooth log is not yet ahead of the serial index by enough, so mark the log as not yet ready
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}
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} //Tooth/Composite log enabled
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}
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/*
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* This function is called on both the rising and falling edges of the primary trigger, when either the
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* composite or tooth loggers are turned on.
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*/
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void loggerPrimaryISR()
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{
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validTrigger = false; //This value will be set to the return value of the decoder function, indicating whether or not this pulse passed the filters
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bool validEdge = false; //This is set true below if the edge
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/*
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Need to still call the standard decoder trigger.
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Two checks here:
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1) If the primary trigger is RISING, then check whether the primary is currently HIGH
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2) If the primary trigger is FALLING, then check whether the primary is currently LOW
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If either of these are true, the primary decoder funtino is called
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*/
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if( ( (primaryTriggerEdge == RISING) && (READ_PRI_TRIGGER() == HIGH) ) || ( (primaryTriggerEdge == FALLING) && (READ_PRI_TRIGGER() == LOW) ) || (primaryTriggerEdge == CHANGE) )
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{
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triggerHandler();
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validEdge = true;
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}
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if( (currentStatus.toothLogEnabled == true) && (validTrigger == true) )
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{
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//Tooth logger only logs when the edge was correct
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if(validEdge == true) { addToothLogEntry(curGap, TOOTH_CRANK); }
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}
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//else if( (currentStatus.compositeLogEnabled == true) && (validTrigger == true) )
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else if( (currentStatus.compositeLogEnabled == true) )
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{
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//Composite logger adds an entry regardless of which edge it was
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addToothLogEntry(curGap, TOOTH_CRANK);
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}
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}
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/*
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* As above, but for the secondary
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*/
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void loggerSecondaryISR()
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{
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validTrigger = false; //This value will be set to the return value of the decoder function, indicating whether or not this pulse passed the filters
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validTrigger = true;
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/* 3 checks here:
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1) If the primary trigger is RISING, then check whether the primary is currently HIGH
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2) If the primary trigger is FALLING, then check whether the primary is currently LOW
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3) The secondary trigger is CHANGING
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If either of these are true, the primary decoder funtino is called
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*/
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if( ( (secondaryTriggerEdge == RISING) && (READ_SEC_TRIGGER() == HIGH) ) || ( (secondaryTriggerEdge == FALLING) && (READ_SEC_TRIGGER() == LOW) ) || (secondaryTriggerEdge == CHANGE) )
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{
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triggerSecondaryHandler();
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}
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//No tooth logger for the secondary input
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if( (currentStatus.compositeLogEnabled == true) && (validTrigger == true) )
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{
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//Composite logger adds an entry regardless of which edge it was
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addToothLogEntry(curGap2, TOOTH_CAM);
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}
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}
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/*
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As nearly all the decoders use a common method of determining RPM (The time the last full revolution took)
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A common function is simpler
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degreesOver is the number of crank degrees between tooth #1s. Some patterns have a tooth #1 every crank rev, others are every cam rev.
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*/
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static inline uint16_t stdGetRPM(uint16_t degreesOver)
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{
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uint16_t tempRPM = 0;
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if( currentStatus.hasSync == true )
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{
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if( (currentStatus.RPM < currentStatus.crankRPM) && (currentStatus.startRevolutions == 0) ) { tempRPM = 0; } //Prevents crazy RPM spike when there has been less than 1 full revolution
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else if( (toothOneTime == 0) || (toothOneMinusOneTime == 0) ) { tempRPM = 0; }
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else
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{
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noInterrupts();
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revolutionTime = (toothOneTime - toothOneMinusOneTime); //The time in uS that one revolution would take at current speed (The time tooth 1 was last seen, minus the time it was seen prior to that)
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interrupts();
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if(degreesOver == 720) { revolutionTime = revolutionTime / 2; }
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tempRPM = (US_IN_MINUTE / revolutionTime); //Calc RPM based on last full revolution time (Faster as /)
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if(tempRPM >= MAX_RPM) { tempRPM = currentStatus.RPM; } //Sanity check
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}
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}
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else { tempRPM = 0; }
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return tempRPM;
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}
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/*
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* Sets the new filter time based on the current settings.
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* This ONLY works for even spaced decoders
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*/
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static inline void setFilter(unsigned long curGap)
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{
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if(configPage4.triggerFilter == 1) { triggerFilterTime = curGap >> 2; } //Lite filter level is 25% of previous gap
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else if(configPage4.triggerFilter == 2) { triggerFilterTime = curGap >> 1; } //Medium filter level is 50% of previous gap
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else if (configPage4.triggerFilter == 3) { triggerFilterTime = (curGap * 3) >> 2; } //Aggressive filter level is 75% of previous gap
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else { triggerFilterTime = 0; } //trigger filter is turned off.
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}
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/*
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This is a special case of RPM measure that is based on the time between the last 2 teeth rather than the time of the last full revolution
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This gives much more volatile reading, but is quite useful during cranking, particularly on low resolution patterns.
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It can only be used on patterns where the teeth are evently spaced
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It takes an argument of the full (COMPLETE) number of teeth per revolution. For a missing tooth wheel, this is the number if the tooth had NOT been missing (Eg 36-1 = 36)
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*/
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static inline int crankingGetRPM(byte totalTeeth)
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{
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uint16_t tempRPM = 0;
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if( (currentStatus.startRevolutions >= configPage4.StgCycles) && (currentStatus.hasSync == true) )
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{
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if( (toothLastToothTime > 0) && (toothLastMinusOneToothTime > 0) && (toothLastToothTime > toothLastMinusOneToothTime) )
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{
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noInterrupts();
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revolutionTime = (toothLastToothTime - toothLastMinusOneToothTime) * totalTeeth;
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interrupts();
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tempRPM = (US_IN_MINUTE / revolutionTime);
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if( tempRPM >= MAX_RPM ) { tempRPM = currentStatus.RPM; } //Sanity check. This can prevent spiking caused by noise on individual teeth. The new RPM should never be above 4x the cranking setting value (Remembering that this function is only called is the current RPM is less than the cranking setting)
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}
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}
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return tempRPM;
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}
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/*
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On decoders that are enabled for per tooth based timing adjustments, this function performs the timer compare changes on the schedules themselves
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For each ignition channel, a check is made whether we're at the relevant tooth and whether that ignition schedule is currently running
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Only if both these conditions are met will the schedule be updated with the latest timing information.
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If it's the correct tooth, but the schedule is not yet started, calculate and an end compare value (This situation occurs when both the start and end of the ignition pulse happen after the end tooth, but before the next tooth)
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*/
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#define MIN_CYCLES_FOR_ENDCOMPARE 6
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#define checkPerToothTiming(crankAngle, currentTooth) \
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{ \
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if ( (fixedCrankingOverride == 0) && (currentStatus.RPM > 0) ) \
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{ \
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if ( (currentTooth == ignition1EndTooth) ) \
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{ \
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if( (ignitionSchedule1.Status == RUNNING) ) { IGN1_COMPARE = IGN1_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition1EndAngle - crankAngle) ) ) ); } \
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else if(currentStatus.startRevolutions > MIN_CYCLES_FOR_ENDCOMPARE) { ignitionSchedule1.endCompare = IGN1_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition1EndAngle - crankAngle) ) ) ); ignitionSchedule1.endScheduleSetByDecoder = true; } \
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} \
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\
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else if ( (currentTooth == ignition2EndTooth) ) \
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{ \
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if( (ignitionSchedule2.Status == RUNNING) ) { IGN2_COMPARE = IGN2_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition2EndAngle - crankAngle) ) ) ); } \
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else if(currentStatus.startRevolutions > MIN_CYCLES_FOR_ENDCOMPARE) { ignitionSchedule2.endCompare = IGN2_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition2EndAngle - crankAngle) ) ) ); ignitionSchedule2.endScheduleSetByDecoder = true; } \
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} \
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\
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else if ( (currentTooth == ignition3EndTooth) ) \
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{ \
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if( (ignitionSchedule3.Status == RUNNING) ) { IGN3_COMPARE = IGN3_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition3EndAngle - crankAngle) ) ) ); } \
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else if(currentStatus.startRevolutions > MIN_CYCLES_FOR_ENDCOMPARE) { ignitionSchedule3.endCompare = IGN3_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition3EndAngle - crankAngle) ) ) ); ignitionSchedule3.endScheduleSetByDecoder = true; } \
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} \
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else if ( (currentTooth == ignition4EndTooth) ) \
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{ \
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if( (ignitionSchedule4.Status == RUNNING) ) { IGN4_COMPARE = IGN4_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition4EndAngle - crankAngle) ) ) ); } \
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else if(currentStatus.startRevolutions > MIN_CYCLES_FOR_ENDCOMPARE) { ignitionSchedule4.endCompare = IGN4_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition4EndAngle - crankAngle) ) ) ); ignitionSchedule4.endScheduleSetByDecoder = true; } \
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} \
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} \
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}
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/*
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Name: Missing tooth wheel
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Desc: A multi-tooth wheel with one of more 'missing' teeth. The first tooth after the missing one is considered number 1 and isthe basis for the trigger angle
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Note: This does not currently support dual wheel (ie missing tooth + single tooth on cam)
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*/
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void triggerSetup_missingTooth()
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{
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triggerToothAngle = 360 / configPage4.triggerTeeth; //The number of degrees that passes from tooth to tooth
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if(configPage4.TrigSpeed == CAM_SPEED) { triggerToothAngle = 720 / configPage4.triggerTeeth; } //Account for cam speed missing tooth
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triggerActualTeeth = configPage4.triggerTeeth - configPage4.triggerMissingTeeth; //The number of physical teeth on the wheel. Doing this here saves us a calculation each time in the interrupt
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triggerFilterTime = (int)(1000000 / (MAX_RPM / 60 * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
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if (configPage4.trigPatternSec == SEC_TRIGGER_4_1)
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{
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triggerSecFilterTime = 1000000 * 60 / MAX_RPM / 4 / 2;
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}
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else
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{
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triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60));
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}
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secondDerivEnabled = false;
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decoderIsSequential = false;
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checkSyncToothCount = (configPage4.triggerTeeth) >> 1; //50% of the total teeth.
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toothLastMinusOneToothTime = 0;
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toothCurrentCount = 0;
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toothOneTime = 0;
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toothOneMinusOneTime = 0;
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MAX_STALL_TIME = (3333UL * triggerToothAngle * (configPage4.triggerMissingTeeth + 1)); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
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}
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void triggerPri_missingTooth()
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{
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curTime = micros();
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curGap = curTime - toothLastToothTime;
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if ( curGap >= triggerFilterTime ) //Pulses should never be less than triggerFilterTime, so if they are it means a false trigger. (A 36-1 wheel at 8000pm will have triggers approx. every 200uS)
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{
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toothCurrentCount++; //Increment the tooth counter
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validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
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//if(toothCurrentCount > checkSyncToothCount || currentStatus.hasSync == false)
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if( (toothLastToothTime > 0) && (toothLastMinusOneToothTime > 0) )
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{
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//Begin the missing tooth detection
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//If the time between the current tooth and the last is greater than 1.5x the time between the last tooth and the tooth before that, we make the assertion that we must be at the first tooth after the gap
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if(configPage4.triggerMissingTeeth == 1) { targetGap = (3 * (toothLastToothTime - toothLastMinusOneToothTime)) >> 1; } //Multiply by 1.5 (Checks for a gap 1.5x greater than the last one) (Uses bitshift to multiply by 3 then divide by 2. Much faster than multiplying by 1.5)
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else { targetGap = ((toothLastToothTime - toothLastMinusOneToothTime)) * configPage4.triggerMissingTeeth; } //Multiply by 2 (Checks for a gap 2x greater than the last one)
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if( (toothLastToothTime == 0) || (toothLastMinusOneToothTime == 0) ) { curGap = 0; }
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if ( (curGap > targetGap) || (toothCurrentCount > triggerActualTeeth) )
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{
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//Missing tooth detected
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if( (toothCurrentCount < triggerActualTeeth) && (currentStatus.hasSync == true) )
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{
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//This occurs when we're at tooth #1, but haven't seen all the other teeth. This indicates a signal issue so we flag lost sync so this will attempt to resync on the next revolution.
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currentStatus.hasSync = false;
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currentStatus.syncLossCounter++;
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}
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//This is to handle a special case on startup where sync can be obtained and the system immediately thinks the revs have jumped:
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//else if (currentStatus.hasSync == false && toothCurrentCount < checkSyncToothCount ) { triggerFilterTime = 0; }
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else
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{
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if(currentStatus.hasSync == true)
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{
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currentStatus.startRevolutions++; //Counter
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if ( configPage4.TrigSpeed == CAM_SPEED ) { currentStatus.startRevolutions++; } //Add an extra revolution count if we're running at cam speed
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}
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else { currentStatus.startRevolutions = 0; }
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toothCurrentCount = 1;
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revolutionOne = !revolutionOne; //Flip sequential revolution tracker
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toothOneMinusOneTime = toothOneTime;
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toothOneTime = curTime;
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currentStatus.hasSync = true;
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triggerFilterTime = 0; //This is used to prevent a condition where serious intermitent signals (Eg someone furiously plugging the sensor wire in and out) can leave the filter in an unrecoverable state
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toothLastMinusOneToothTime = toothLastToothTime;
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toothLastToothTime = curTime;
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triggerToothAngleIsCorrect = false; //The tooth angle is double at this point
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}
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}
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else
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{
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//Filter can only be recalc'd for the regular teeth, not the missing one.
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setFilter(curGap);
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toothLastMinusOneToothTime = toothLastToothTime;
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toothLastToothTime = curTime;
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triggerToothAngleIsCorrect = true;
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}
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}
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else
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{
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toothLastMinusOneToothTime = toothLastToothTime;
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toothLastToothTime = curTime;
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}
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//NEW IGNITION MODE
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if( (configPage2.perToothIgn == true) && (!BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK)) )
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{
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//ignition1EndTooth = 11;
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//ignition1EndAngle = 0;
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int16_t crankAngle = ( (toothCurrentCount-1) * triggerToothAngle ) + configPage4.triggerAngle;
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//if ( (toothCurrentCount == ignition1EndTooth) && (ignitionSchedule1.Status == RUNNING) ) { IGN1_COMPARE = IGN1_COUNTER + uS_TO_TIMER_COMPARE( fastDegreesToUS( ignitionLimits( (ignition1EndAngle - crankAngle) ) ) ); }
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//if ( (toothCurrentCount == ignition1EndTooth) && (ignitionSchedule1.Status == RUNNING) ) { IGN1_COMPARE = IGN1_COUNTER + uS_TO_TIMER_COMPARE( 9048 ); }
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//else { if (toothCurrentCount == ignition1EndTooth) { ignitionSchedule1.endCompare = IGN1_COUNTER + uS_TO_TIMER_COMPARE( 9048 ); } }
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if( (configPage4.sparkMode == IGN_MODE_SEQUENTIAL) && (revolutionOne == true) && (configPage4.TrigSpeed == CRANK_SPEED) )
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{
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crankAngle += 360;
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checkPerToothTiming(crankAngle, (configPage4.triggerTeeth + toothCurrentCount));
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}
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else{ checkPerToothTiming(crankAngle, toothCurrentCount); }
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}
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}
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}
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void triggerSec_missingTooth()
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{
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curTime2 = micros();
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curGap2 = curTime2 - toothLastSecToothTime;
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//Safety check for initial startup
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if( (toothLastSecToothTime == 0) )
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{
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curGap2 = 0;
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toothLastSecToothTime = curTime2;
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}
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if ( curGap2 >= triggerSecFilterTime )
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{
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if ( configPage4.trigPatternSec == SEC_TRIGGER_4_1 )
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{
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targetGap2 = (3 * (toothLastSecToothTime - toothLastMinusOneSecToothTime)) >> 1; //If the time between the current tooth and the last is greater than 1.5x the time between the last tooth and the tooth before that, we make the assertion that we must be at the first tooth after the gap
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toothLastMinusOneSecToothTime = toothLastSecToothTime;
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if ( (curGap2 >= targetGap2) || (secondaryToothCount > 3) )
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{
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secondaryToothCount = 1;
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revolutionOne = 1; //Sequential revolution reset
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triggerSecFilterTime = 0; //This is used to prevent a condition where serious intermitent signals (Eg someone furiously plugging the sensor wire in and out) can leave the filter in an unrecoverable state
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}
|
|
else
|
|
{
|
|
triggerSecFilterTime = curGap2 >> 2; //Set filter at 25% of the current speed. Filter can only be recalc'd for the regular teeth, not the missing one.
|
|
secondaryToothCount++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//Standard single tooth cam trigger
|
|
revolutionOne = 1; //Sequential revolution reset
|
|
triggerSecFilterTime = curGap2 >> 1; //Next secondary filter is half the current gap
|
|
}
|
|
toothLastSecToothTime = curTime2;
|
|
} //Trigger filter
|
|
}
|
|
|
|
uint16_t getRPM_missingTooth()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
if( currentStatus.RPM < currentStatus.crankRPM )
|
|
{
|
|
if(toothCurrentCount != 1)
|
|
{
|
|
if(configPage4.TrigSpeed == CAM_SPEED) { tempRPM = crankingGetRPM(configPage4.triggerTeeth/2); } //Account for cam speed
|
|
else { tempRPM = crankingGetRPM(configPage4.triggerTeeth); }
|
|
}
|
|
else { tempRPM = currentStatus.RPM; } //Can't do per tooth RPM if we're at tooth #1 as the missing tooth messes the calculation
|
|
}
|
|
else
|
|
{
|
|
if(configPage4.TrigSpeed == CAM_SPEED) { tempRPM = stdGetRPM(720); } //Account for cam speed
|
|
else { tempRPM = stdGetRPM(360); }
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_missingTooth()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
bool tempRevolutionOne;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempRevolutionOne = revolutionOne;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
interrupts();
|
|
|
|
int crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
|
|
//Sequential check (simply sets whether we're on the first or 2nd revoltuion of the cycle)
|
|
if ( (tempRevolutionOne == true) && (configPage4.TrigSpeed == CRANK_SPEED) ) { crankAngle += 360; }
|
|
|
|
lastCrankAngleCalc = micros();
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
else if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += CRANK_ANGLE_MAX; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_missingTooth()
|
|
{
|
|
byte toothAdder = 0;
|
|
if( (configPage4.sparkMode == IGN_MODE_SEQUENTIAL) && (configPage4.TrigSpeed == CRANK_SPEED) ) { toothAdder = configPage4.triggerTeeth; }
|
|
|
|
ignition1EndTooth = ( (ignition1EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition1EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition1EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition1EndTooth <= 0) { ignition1EndTooth += (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition1EndTooth > (triggerActualTeeth + toothAdder)) { ignition1EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition2EndTooth = ( (ignition2EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition2EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition2EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition2EndTooth <= 0) { ignition2EndTooth += (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition2EndTooth > (triggerActualTeeth + toothAdder)) { ignition2EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition3EndTooth = ( (ignition3EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition3EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition3EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition3EndTooth <= 0) { ignition3EndTooth += (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition3EndTooth > (triggerActualTeeth + toothAdder)) { ignition3EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition4EndTooth = ( (ignition4EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition4EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition4EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition4EndTooth <= 0) { ignition4EndTooth += (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition4EndTooth > (triggerActualTeeth + toothAdder)) { ignition4EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Dual wheel
|
|
Desc: 2 wheels located either both on the crank or with the primary on the crank and the secondary on the cam.
|
|
Note: There can be no missing teeth on the primary wheel
|
|
*/
|
|
void triggerSetup_DualWheel()
|
|
{
|
|
triggerToothAngle = 360 / configPage4.triggerTeeth; //The number of degrees that passes from tooth to tooth
|
|
if(configPage4.TrigSpeed == 1) { triggerToothAngle = 720 / configPage4.triggerTeeth; } //Account for cam speed missing tooth
|
|
toothCurrentCount = 255; //Default value
|
|
triggerFilterTime = (int)(1000000 / (MAX_RPM / 60 * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
triggerToothAngleIsCorrect = true; //This is always true for this pattern
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
}
|
|
|
|
|
|
void triggerPri_DualWheel()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( curGap >= triggerFilterTime )
|
|
{
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
if ( currentStatus.hasSync == true )
|
|
{
|
|
if ( (toothCurrentCount == 1) || (toothCurrentCount > configPage4.triggerTeeth) )
|
|
{
|
|
toothCurrentCount = 1;
|
|
revolutionOne = !revolutionOne; //Flip sequential revolution tracker
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
|
|
setFilter(curGap); //Recalc the new filter value
|
|
}
|
|
|
|
//NEW IGNITION MODE
|
|
if( (configPage2.perToothIgn == true) && (!BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK)) )
|
|
{
|
|
int16_t crankAngle = ( (toothCurrentCount-1) * triggerToothAngle ) + configPage4.triggerAngle;
|
|
if( (configPage4.sparkMode == IGN_MODE_SEQUENTIAL) && (revolutionOne == true) && (configPage4.TrigSpeed == CRANK_SPEED) )
|
|
{
|
|
crankAngle += 360;
|
|
checkPerToothTiming(crankAngle, (configPage4.triggerTeeth + toothCurrentCount));
|
|
}
|
|
else{ checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
} //Trigger filter
|
|
}
|
|
|
|
void triggerSec_DualWheel()
|
|
{
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
if ( curGap2 >= triggerSecFilterTime )
|
|
{
|
|
toothLastSecToothTime = curTime2;
|
|
triggerSecFilterTime = curGap2 >> 2; //Set filter at 25% of the current speed
|
|
|
|
if(currentStatus.hasSync == false)
|
|
{
|
|
toothLastToothTime = micros();
|
|
toothLastMinusOneToothTime = micros() - (6000000 / configPage4.triggerTeeth); //Fixes RPM at 10rpm until a full revolution has taken place
|
|
toothCurrentCount = configPage4.triggerTeeth;
|
|
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else
|
|
{
|
|
if (toothCurrentCount != configPage4.triggerTeeth) { currentStatus.syncLossCounter++; } //Indicates likely sync loss
|
|
if (configPage4.useResync == 1) { toothCurrentCount = configPage4.triggerTeeth; }
|
|
}
|
|
|
|
revolutionOne = 1; //Sequential revolution reset
|
|
} //Trigger filter
|
|
}
|
|
|
|
uint16_t getRPM_DualWheel()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
if( currentStatus.hasSync == true )
|
|
{
|
|
if(currentStatus.RPM < currentStatus.crankRPM) { tempRPM = crankingGetRPM(configPage4.triggerTeeth); }
|
|
else { tempRPM = stdGetRPM(360); }
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_DualWheel()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
bool tempRevolutionOne;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
tempRevolutionOne = revolutionOne;
|
|
lastCrankAngleCalc = micros();
|
|
interrupts();
|
|
|
|
//Handle case where the secondary tooth was the last one seen
|
|
if(tempToothCurrentCount == 0) { tempToothCurrentCount = configPage4.triggerTeeth; }
|
|
|
|
int crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
//Sequential check (simply sets whether we're on the first or 2nd revoltuion of the cycle)
|
|
if (tempRevolutionOne) { crankAngle += 360; }
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += CRANK_ANGLE_MAX; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_DualWheel()
|
|
{
|
|
//The toothAdder variable is used for when a setup is running sequentially, but the primary wheel is running at crank speed. This way the count of teeth will go up to 2* the number of primary teeth to allow for a sequential count.
|
|
byte toothAdder = 0;
|
|
if( (configPage4.sparkMode == IGN_MODE_SEQUENTIAL) && (configPage4.TrigSpeed == CRANK_SPEED) ) { toothAdder = configPage4.triggerTeeth; }
|
|
|
|
ignition1EndTooth = ( (ignition1EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition1EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition1EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition1EndTooth <= 0) { ignition1EndTooth += configPage4.triggerTeeth; }
|
|
if(ignition1EndTooth > (triggerActualTeeth + toothAdder)) { ignition1EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition2EndTooth = ( (ignition2EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition2EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition2EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition2EndTooth <= 0) { ignition2EndTooth += configPage4.triggerTeeth; }
|
|
if(ignition1EndTooth > (triggerActualTeeth + toothAdder)) { ignition3EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition3EndTooth = ( (ignition3EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition3EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition3EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition3EndTooth <= 0) { ignition3EndTooth += configPage4.triggerTeeth; }
|
|
if(ignition3EndTooth > (triggerActualTeeth + toothAdder)) { ignition3EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
ignition4EndTooth = ( (ignition4EndAngle - configPage4.triggerAngle) / (int16_t)(triggerToothAngle) ) - 1;
|
|
if(ignition4EndTooth > (configPage4.triggerTeeth + toothAdder)) { ignition4EndTooth -= (configPage4.triggerTeeth + toothAdder); }
|
|
if(ignition4EndTooth <= 0) { ignition4EndTooth += configPage4.triggerTeeth; }
|
|
if(ignition4EndTooth > (triggerActualTeeth + toothAdder)) { ignition4EndTooth = (triggerActualTeeth + toothAdder); }
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
|
|
}
|
|
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Basic Distributor
|
|
Desc: Tooth equal to the number of cylinders are evenly spaced on the cam. No position sensing (Distributor is retained) so crank angle is a made up figure based purely on the first teeth to be seen
|
|
Note: This is a very simple decoder. See www.megamanual.com/ms2/GM_7pinHEI.htm
|
|
*/
|
|
void triggerSetup_BasicDistributor()
|
|
{
|
|
triggerActualTeeth = configPage2.nCylinders;
|
|
if(triggerActualTeeth == 0) { triggerActualTeeth = 1; }
|
|
triggerToothAngle = 720 / triggerActualTeeth; //The number of degrees that passes from tooth to tooth
|
|
triggerFilterTime = 60000000L / MAX_RPM / configPage2.nCylinders; // Minimum time required between teeth
|
|
triggerFilterTime = triggerFilterTime / 2; //Safety margin
|
|
triggerFilterTime = 0;
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
toothCurrentCount = 0; //Default value
|
|
decoderHasFixedCrankingTiming = true;
|
|
triggerToothAngleIsCorrect = true;
|
|
if(configPage2.nCylinders <= 4) { MAX_STALL_TIME = (1851UL * triggerToothAngle); }//Minimum 90rpm. (1851uS is the time per degree at 90rpm). This uses 90rpm rather than 50rpm due to the potentially very high stall time on a 4 cylinder if we wait that long.
|
|
else { MAX_STALL_TIME = (3200UL * triggerToothAngle); } //Minimum 50rpm. (3200uS is the time per degree at 50rpm).
|
|
|
|
}
|
|
|
|
void triggerPri_BasicDistributor()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( (curGap >= triggerFilterTime) )
|
|
{
|
|
if( (toothCurrentCount == triggerActualTeeth) || (currentStatus.hasSync == false) ) //Check if we're back to the beginning of a revolution
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
else
|
|
{
|
|
if( (toothCurrentCount < triggerActualTeeth) ) { toothCurrentCount++; } //Increment the tooth counter
|
|
else
|
|
{
|
|
//This means toothCurrentCount is greater than triggerActualTeeth, which is bad.
|
|
//If we have sync here then there's a problem. Throw a sync loss
|
|
if( currentStatus.hasSync == true )
|
|
{
|
|
currentStatus.syncLossCounter++;
|
|
currentStatus.hasSync = false;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
setFilter(curGap); //Recalc the new filter value
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
if ( configPage4.ignCranklock && BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) )
|
|
{
|
|
endCoil1Charge();
|
|
endCoil2Charge();
|
|
endCoil3Charge();
|
|
endCoil4Charge();
|
|
}
|
|
|
|
if(configPage2.perToothIgn == true)
|
|
{
|
|
uint16_t crankAngle = ( (toothCurrentCount-1) * triggerToothAngle ) + configPage4.triggerAngle;
|
|
crankAngle = ignitionLimits((crankAngle));
|
|
if(toothCurrentCount > (triggerActualTeeth/2) ) { checkPerToothTiming(crankAngle, (toothCurrentCount - (triggerActualTeeth/2))); }
|
|
else { checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
} //Trigger filter
|
|
}
|
|
void triggerSec_BasicDistributor() { return; } //Not required
|
|
uint16_t getRPM_BasicDistributor()
|
|
{
|
|
uint16_t tempRPM;
|
|
if( currentStatus.RPM < currentStatus.crankRPM)
|
|
{
|
|
tempRPM = crankingGetRPM(triggerActualTeeth) << 1; //crankGetRPM uses teeth per 360 degrees. As triggerActualTeeh is total teeth in 720 degrees, we divide the tooth count by 2
|
|
revolutionTime = revolutionTime >> 1; //Revolution time has to be divided by 2 as otherwise it would be over 720 degrees (triggerActualTeeth = nCylinders)
|
|
}
|
|
else { tempRPM = stdGetRPM(720); } //Multiply RPM by 2 due to tracking over 720 degrees now rather than 360
|
|
|
|
MAX_STALL_TIME = revolutionTime << 1; //Set the stall time to be twice the current RPM. This is a safe figure as there should be no single revolution where this changes more than this
|
|
if(triggerActualTeeth == 1) { MAX_STALL_TIME = revolutionTime << 1; } //Special case for 1 cylinder engines that only get 1 pulse every 720 degrees
|
|
if(MAX_STALL_TIME < 366667UL) { MAX_STALL_TIME = 366667UL; } //Check for 50rpm minimum
|
|
|
|
return tempRPM;
|
|
|
|
}
|
|
int getCrankAngle_BasicDistributor()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
int crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
|
|
//crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_TOOTH);
|
|
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += CRANK_ANGLE_MAX; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_BasicDistributor()
|
|
{
|
|
|
|
int tempEndAngle = (ignition1EndAngle - configPage4.triggerAngle);
|
|
tempEndAngle = ignitionLimits((tempEndAngle));
|
|
|
|
|
|
if( (tempEndAngle > 180) || (tempEndAngle <= 0) )
|
|
{
|
|
ignition1EndTooth = 2;
|
|
ignition2EndTooth = 1;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 1;
|
|
ignition2EndTooth = 2;
|
|
}
|
|
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: GM7X
|
|
Desc: GM 7X trigger wheel. It has six equally spaced teeth and a seventh tooth for cylinder identification.
|
|
Note: Within the code below, the sync tooth is referred to as tooth #3 rather than tooth #7. This makes for simpler angle calculations
|
|
www.speeduino.com/forum/download/file.php?id=4743
|
|
*/
|
|
void triggerSetup_GM7X()
|
|
{
|
|
triggerToothAngle = 360 / 6; //The number of degrees that passes from tooth to tooth
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
}
|
|
|
|
void triggerPri_GM7X()
|
|
{
|
|
lastGap = curGap;
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
if( (toothLastToothTime > 0) && (toothLastMinusOneToothTime > 0) )
|
|
{
|
|
if( toothCurrentCount > 7 )
|
|
{
|
|
toothCurrentCount = 1;
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
else
|
|
{
|
|
targetGap = (lastGap) >> 1; //The target gap is set at half the last tooth gap
|
|
if ( curGap < targetGap ) //If the gap between this tooth and the last one is less than half of the previous gap, then we are very likely at the magical 3rd tooth
|
|
{
|
|
toothCurrentCount = 3;
|
|
currentStatus.hasSync = true;
|
|
triggerToothAngleIsCorrect = false;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
else
|
|
{
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
//New ignition mode!
|
|
if(configPage2.perToothIgn == true)
|
|
{
|
|
if(toothCurrentCount != 3) //Never do the check on the extra tooth. It's not needed anyway
|
|
{
|
|
uint16_t crankAngle;
|
|
if( toothCurrentCount < 3 )
|
|
{
|
|
crankAngle = ((toothCurrentCount - 1) * triggerToothAngle) + 42; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
else
|
|
{
|
|
crankAngle = ((toothCurrentCount - 2) * triggerToothAngle) + 42; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
checkPerToothTiming(crankAngle, toothCurrentCount);
|
|
}
|
|
|
|
}
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
|
|
}
|
|
void triggerSec_GM7X() { return; } //Not required
|
|
uint16_t getRPM_GM7X()
|
|
{
|
|
return stdGetRPM(360);
|
|
}
|
|
int getCrankAngle_GM7X()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
//Check if the last tooth seen was the reference tooth (Number 3). All others can be calculated, but tooth 3 has a unique angle
|
|
int crankAngle;
|
|
if( tempToothCurrentCount < 3 )
|
|
{
|
|
crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + 42; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
else if( tempToothCurrentCount == 3 )
|
|
{
|
|
crankAngle = 112;
|
|
}
|
|
else
|
|
{
|
|
crankAngle = ((tempToothCurrentCount - 2) * triggerToothAngle) + 42; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_GM7X()
|
|
{
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
|
|
if(currentStatus.advance < 18 )
|
|
{
|
|
ignition1EndTooth = 7;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 5;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 6;
|
|
ignition2EndTooth = 1;
|
|
ignition3EndTooth = 4;
|
|
}
|
|
}
|
|
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Mitsubishi 4G63 / NA/NB Miata + MX-5 / 4/2
|
|
Desc: TBA
|
|
Note: raw.githubusercontent.com/noisymime/speeduino/master/reference/wiki/decoders/4g63_trace.png
|
|
Tooth #1 is defined as the next crank tooth after the crank signal is HIGH when the cam signal is falling.
|
|
Tooth number one is at 355* ATDC
|
|
*/
|
|
void triggerSetup_4G63()
|
|
{
|
|
triggerToothAngle = 180; //The number of degrees that passes from tooth to tooth (primary)
|
|
toothCurrentCount = 99; //Fake tooth count represents no sync
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
decoderHasFixedCrankingTiming = true;
|
|
triggerToothAngleIsCorrect = true;
|
|
MAX_STALL_TIME = 366667UL; //Minimum 50rpm based on the 110 degree tooth spacing
|
|
if(initialisationComplete == false) { toothLastToothTime = micros(); } //Set a startup value here to avoid filter errors when starting. This MUST have the initi check to prevent the fuel pump just staying on all the time
|
|
//decoderIsLowRes = true;
|
|
|
|
//Note that these angles are for every rising and falling edge
|
|
if(configPage2.nCylinders == 6)
|
|
{
|
|
//New values below
|
|
toothAngles[0] = 715; //Rising edge of tooth #1
|
|
toothAngles[1] = 45; //Falling edge of tooth #1
|
|
toothAngles[2] = 115; //Rising edge of tooth #2
|
|
toothAngles[3] = 165; //Falling edge of tooth #2
|
|
toothAngles[4] = 235; //Rising edge of tooth #3
|
|
toothAngles[5] = 285; //Falling edge of tooth #3
|
|
|
|
toothAngles[6] = 355; //Rising edge of tooth #4
|
|
toothAngles[7] = 405; //Falling edge of tooth #4
|
|
toothAngles[8] = 475; //Rising edge of tooth #5
|
|
toothAngles[9] = 525; //Falling edge of tooth $5
|
|
toothAngles[10] = 595; //Rising edge of tooth #6
|
|
toothAngles[11] = 645; //Falling edge of tooth #6
|
|
|
|
triggerActualTeeth = 12; //Both sides of all teeth over 720 degrees
|
|
}
|
|
else
|
|
{
|
|
// 70 / 110 for 4 cylinder
|
|
toothAngles[0] = 715; //Falling edge of tooth #1
|
|
toothAngles[1] = 105; //Rising edge of tooth #2
|
|
toothAngles[2] = 175; //Falling edge of tooth #2
|
|
toothAngles[3] = 285; //Rising edge of tooth #1
|
|
|
|
toothAngles[4] = 355; //Falling edge of tooth #1
|
|
toothAngles[5] = 465; //Rising edge of tooth #2
|
|
toothAngles[6] = 535; //Falling edge of tooth #2
|
|
toothAngles[7] = 645; //Rising edge of tooth #1
|
|
|
|
triggerActualTeeth = 8;
|
|
}
|
|
|
|
triggerFilterTime = 1500; //10000 rpm, assuming we're triggering on both edges off the crank tooth.
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
triggerSecFilterTime_duration = 4000;
|
|
secondaryLastToothTime = 0;
|
|
}
|
|
|
|
void triggerPri_4G63()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( (curGap >= triggerFilterTime) || (currentStatus.startRevolutions == 0) )
|
|
{
|
|
validTrigger = true; //Flag that this pulse was accepted as a valid trigger
|
|
triggerFilterTime = curGap >> 2; //This only applies during non-sync conditions. If there is sync then triggerFilterTime gets changed again below with a better value.
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
toothCurrentCount++;
|
|
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount > triggerActualTeeth) ) //Trigger is on CHANGE, hence 4 pulses = 1 crank rev (or 6 pulses for 6 cylinders)
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
if ( BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) && configPage4.ignCranklock && (currentStatus.startRevolutions >= configPage4.StgCycles))
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
//This operates in forced wasted spark mode during cranking to align with crank teeth
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 5) ) { endCoil1Charge(); endCoil3Charge(); }
|
|
else if( (toothCurrentCount == 3) || (toothCurrentCount == 7) ) { endCoil2Charge(); endCoil4Charge(); }
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 7) ) { endCoil1Charge(); }
|
|
else if( (toothCurrentCount == 3) || (toothCurrentCount == 9) ) { endCoil2Charge(); }
|
|
else if( (toothCurrentCount == 5) || (toothCurrentCount == 11) ) { endCoil3Charge(); }
|
|
}
|
|
}
|
|
|
|
//Whilst this is an uneven tooth pattern, if the specific angle between the last 2 teeth is specified, 1st deriv prediction can be used
|
|
if( (configPage4.triggerFilter == 1) || (currentStatus.RPM < 1400) )
|
|
{
|
|
//Lite filter
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) || (toothCurrentCount == 9) || (toothCurrentCount == 11) )
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerToothAngle = 70;
|
|
triggerFilterTime = curGap; //Trigger filter is set to whatever time it took to do 70 degrees (Next trigger is 110 degrees away)
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
triggerToothAngle = 70;
|
|
triggerFilterTime = (curGap >> 2); //Trigger filter is set to (70/4)=17.5=17 degrees (Next trigger is 50 degrees away).
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerToothAngle = 110;
|
|
triggerFilterTime = (curGap * 3) >> 3; //Trigger filter is set to (110*3)/8=41.25=41 degrees (Next trigger is 70 degrees away).
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
triggerToothAngle = 50;
|
|
triggerFilterTime = curGap >> 1; //Trigger filter is set to 25 degrees (Next trigger is 70 degrees away).
|
|
}
|
|
}
|
|
}
|
|
else if(configPage4.triggerFilter == 2)
|
|
{
|
|
//Medium filter level
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) || (toothCurrentCount == 9) || (toothCurrentCount == 11) )
|
|
{
|
|
triggerToothAngle = 70;
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerFilterTime = (curGap * 5) >> 2 ; //87.5 degrees with a target of 110
|
|
}
|
|
else
|
|
{
|
|
triggerFilterTime = curGap >> 1 ; //35 degrees with a target of 50
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerToothAngle = 110;
|
|
triggerFilterTime = (curGap >> 1); //55 degrees with a target of 70
|
|
}
|
|
else
|
|
{
|
|
triggerToothAngle = 50;
|
|
triggerFilterTime = (curGap * 3) >> 2; //Trigger filter is set to (50*3)/4=37.5=37 degrees (Next trigger is 70 degrees away).
|
|
}
|
|
}
|
|
}
|
|
else if (configPage4.triggerFilter == 3)
|
|
{
|
|
//Aggressive filter level
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) || (toothCurrentCount == 9) || (toothCurrentCount == 11) )
|
|
{
|
|
triggerToothAngle = 70;
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerFilterTime = (curGap * 11) >> 3;//96.26 degrees with a target of 110
|
|
}
|
|
else
|
|
{
|
|
triggerFilterTime = curGap >> 1 ; //35 degrees with a target of 50
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
triggerToothAngle = 110;
|
|
triggerFilterTime = (curGap * 9) >> 5; //61.87 degrees with a target of 70
|
|
}
|
|
else
|
|
{
|
|
triggerToothAngle = 50;
|
|
triggerFilterTime = curGap; //50 degrees with a target of 70
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//trigger filter is turned off.
|
|
triggerFilterTime = 0;
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) || (toothCurrentCount == 9) || (toothCurrentCount == 11) )
|
|
{
|
|
if(configPage2.nCylinders == 4) { triggerToothAngle = 70; }
|
|
else { triggerToothAngle = 70; }
|
|
}
|
|
else
|
|
{
|
|
if(configPage2.nCylinders == 4) { triggerToothAngle = 110; }
|
|
else { triggerToothAngle = 50; }
|
|
}
|
|
}
|
|
|
|
//EXPERIMENTAL!
|
|
//New ignition mode is ONLY available on 4g63 when the trigger angle is set to the stock value of 0.
|
|
if( (configPage2.perToothIgn == true) && (configPage4.triggerAngle == 0) )
|
|
{
|
|
if( (configPage2.nCylinders == 4) && (currentStatus.advance > 0) )
|
|
{
|
|
uint16_t crankAngle = ignitionLimits( toothAngles[(toothCurrentCount-1)] );
|
|
|
|
//Handle non-sequential tooth counts
|
|
if( (configPage4.sparkMode != IGN_MODE_SEQUENTIAL) && (toothCurrentCount > configPage2.nCylinders) ) { checkPerToothTiming(crankAngle, (toothCurrentCount-configPage2.nCylinders) ); }
|
|
else { checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
}
|
|
} //Has sync
|
|
else
|
|
{
|
|
triggerSecFilterTime = 0;
|
|
//New secondary method of determining sync
|
|
if(READ_PRI_TRIGGER() == true)
|
|
{
|
|
if(READ_SEC_TRIGGER() == true) { revolutionOne = true; }
|
|
else { revolutionOne = false; }
|
|
}
|
|
else
|
|
{
|
|
if( (READ_SEC_TRIGGER() == false) && (revolutionOne == true) )
|
|
{
|
|
//Crank is low, cam is low and the crank pulse STARTED when the cam was high.
|
|
if(configPage2.nCylinders == 4) { toothCurrentCount = 1; } //Means we're at 5* BTDC on a 4G63 4 cylinder
|
|
//else if(configPage2.nCylinders == 6) { toothCurrentCount = 8; }
|
|
}
|
|
//If sequential is ever enabled, the below toothCurrentCount will need to change:
|
|
else if( (READ_SEC_TRIGGER() == true) && (revolutionOne == true) )
|
|
{
|
|
//Crank is low, cam is high and the crank pulse STARTED when the cam was high.
|
|
if(configPage2.nCylinders == 4) { toothCurrentCount = 5; } //Means we're at 5* BTDC on a 4G63 4 cylinder
|
|
else if(configPage2.nCylinders == 6) { toothCurrentCount = 2; currentStatus.hasSync = true; } //Means we're at 45* ATDC on 6G72 6 cylinder
|
|
}
|
|
}
|
|
}
|
|
} //Filter time
|
|
|
|
}
|
|
void triggerSec_4G63()
|
|
{
|
|
//byte crankState = READ_PRI_TRIGGER();
|
|
//First filter is a duration based one to ensure the pulse was of sufficient length (time)
|
|
//if(READ_SEC_TRIGGER()) { secondaryLastToothTime1 = micros(); return; }
|
|
if(currentStatus.hasSync == true)
|
|
{
|
|
//1166 is the time taken to cross 70 degrees at 10k rpm
|
|
//if ( (micros() - secondaryLastToothTime1) < triggerSecFilterTime_duration ) { return; }
|
|
//triggerSecFilterTime_duration = (micros() - secondaryLastToothTime1) >> 1;
|
|
}
|
|
|
|
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
if ( (curGap2 >= triggerSecFilterTime) )//|| (currentStatus.startRevolutions == 0) )
|
|
{
|
|
toothLastSecToothTime = curTime2;
|
|
validTrigger = true; //Flag that this pulse was accepted as a valid trigger
|
|
//addToothLogEntry(curGap, TOOTH_CAM);
|
|
|
|
triggerSecFilterTime = curGap2 >> 1; //Basic 50% filter for the secondary reading
|
|
//More aggressive options:
|
|
//62.5%:
|
|
//triggerSecFilterTime = (curGap2 * 9) >> 5;
|
|
//75%:
|
|
//triggerSecFilterTime = (curGap2 * 6) >> 3;
|
|
|
|
//if( (currentStatus.RPM < currentStatus.crankRPM) || (currentStatus.hasSync == false) )
|
|
if( (currentStatus.hasSync == false) )
|
|
{
|
|
|
|
triggerFilterTime = 1500; //If this is removed, can have trouble getting sync again after the engine is turned off (but ECU not reset).
|
|
triggerSecFilterTime = triggerSecFilterTime >> 1; //Divide the secondary filter time by 2 again, making it 25%. Only needed when cranking
|
|
if(READ_PRI_TRIGGER() == true)
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
if(toothCurrentCount == 8) { currentStatus.hasSync = true; } //Is 8 for sequential, was 4
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
if(toothCurrentCount == 7) { currentStatus.hasSync = true; }
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
if(toothCurrentCount == 5) { currentStatus.hasSync = true; } //Is 5 for sequential, was 1
|
|
}
|
|
//Cannot gain sync for 6 cylinder here.
|
|
}
|
|
}
|
|
|
|
//if ( (micros() - secondaryLastToothTime1) < triggerSecFilterTime_duration && configPage2.useResync )
|
|
if ( (currentStatus.RPM < currentStatus.crankRPM) || (configPage4.useResync == 1) )
|
|
{
|
|
if( (currentStatus.hasSync == true) && (configPage2.nCylinders == 4) )
|
|
{
|
|
triggerSecFilterTime_duration = (micros() - secondaryLastToothTime1) >> 1;
|
|
if(READ_PRI_TRIGGER() == true)
|
|
{
|
|
//Whilst we're cranking and have sync, we need to watch for noise pulses.
|
|
if(toothCurrentCount != 8)
|
|
{
|
|
// This should never be true, except when there's noise
|
|
currentStatus.hasSync = false;
|
|
currentStatus.syncLossCounter++;
|
|
}
|
|
else { toothCurrentCount = 8; } //Why? Just why?
|
|
}
|
|
} //Has sync and 4 cylinder
|
|
} // Use resync or cranking
|
|
} //Trigger filter
|
|
}
|
|
|
|
|
|
uint16_t getRPM_4G63()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
//During cranking, RPM is calculated 4 times per revolution, once for each rising/falling of the crank signal.
|
|
//Because these signals aren't even (Alternating 110 and 70 degrees), this needs a special function
|
|
if(currentStatus.hasSync == true)
|
|
{
|
|
if( (currentStatus.RPM < currentStatus.crankRPM) )
|
|
{
|
|
int tempToothAngle;
|
|
unsigned long toothTime;
|
|
if( (toothLastToothTime == 0) || (toothLastMinusOneToothTime == 0) ) { tempRPM = 0; }
|
|
else
|
|
{
|
|
noInterrupts();
|
|
tempToothAngle = triggerToothAngle;
|
|
toothTime = (toothLastToothTime - toothLastMinusOneToothTime); //Note that trigger tooth angle changes between 70 and 110 depending on the last tooth that was seen (or 70/50 for 6 cylinders)
|
|
interrupts();
|
|
toothTime = toothTime * 36;
|
|
tempRPM = ((unsigned long)tempToothAngle * 6000000UL) / toothTime;
|
|
revolutionTime = (10UL * toothTime) / tempToothAngle;
|
|
MAX_STALL_TIME = 366667UL; // 50RPM
|
|
}
|
|
}
|
|
else
|
|
{
|
|
tempRPM = stdGetRPM(720);
|
|
//EXPERIMENTAL! Add/subtract RPM based on the last rpmDOT calc
|
|
//tempRPM += (micros() - toothOneTime) * currentStatus.rpmDOT
|
|
MAX_STALL_TIME = revolutionTime << 1; //Set the stall time to be twice the current RPM. This is a safe figure as there should be no single revolution where this changes more than this
|
|
if(MAX_STALL_TIME < 366667UL) { MAX_STALL_TIME = 366667UL; } //Check for 50rpm minimum
|
|
}
|
|
}
|
|
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_4G63()
|
|
{
|
|
int crankAngle = 0;
|
|
if(currentStatus.hasSync == true)
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle; //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_TOOTH);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
}
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_4G63()
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
if(configPage4.sparkMode == IGN_MODE_SEQUENTIAL)
|
|
{
|
|
ignition1EndTooth = 8;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4;
|
|
ignition4EndTooth = 6;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 4;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4; //Not used
|
|
ignition4EndTooth = 2;
|
|
}
|
|
}
|
|
if(configPage2.nCylinders == 6)
|
|
{
|
|
if(configPage4.sparkMode == IGN_MODE_SEQUENTIAL)
|
|
{
|
|
//This should never happen as 6 cylinder sequential not supported
|
|
ignition1EndTooth = 8;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4;
|
|
ignition4EndTooth = 6;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 6;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4;
|
|
ignition4EndTooth = 2; //Not used
|
|
}
|
|
}
|
|
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: GM
|
|
Desc: TBA
|
|
Note: Useful references:
|
|
www.vems.hu/wiki/index.php?page=MembersPage%2FJorgenKarlsson%2FTwentyFourX
|
|
Provided that the cam signal is used, this decoder simply counts the teeth and then looks their angles up against a lookup table. The cam signal is used to determine tooth #1
|
|
*/
|
|
void triggerSetup_24X()
|
|
{
|
|
triggerToothAngle = 15; //The number of degrees that passes from tooth to tooth (primary)
|
|
toothAngles[0] = 12;
|
|
toothAngles[1] = 18;
|
|
toothAngles[2] = 33;
|
|
toothAngles[3] = 48;
|
|
toothAngles[4] = 63;
|
|
toothAngles[5] = 78;
|
|
toothAngles[6] = 102;
|
|
toothAngles[7] = 108;
|
|
toothAngles[8] = 123;
|
|
toothAngles[9] = 138;
|
|
toothAngles[10] = 162;
|
|
toothAngles[11] = 177;
|
|
toothAngles[12] = 183;
|
|
toothAngles[13] = 198;
|
|
toothAngles[14] = 222;
|
|
toothAngles[15] = 237;
|
|
toothAngles[16] = 252;
|
|
toothAngles[17] = 258;
|
|
toothAngles[18] = 282;
|
|
toothAngles[19] = 288;
|
|
toothAngles[20] = 312;
|
|
toothAngles[21] = 327;
|
|
toothAngles[22] = 342;
|
|
toothAngles[23] = 357;
|
|
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
if(initialisationComplete == false) { toothCurrentCount = 25; toothLastToothTime = micros(); } //Set a startup value here to avoid filter errors when starting. This MUST have the init check to prevent the fuel pump just staying on all the time
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
|
|
void triggerPri_24X()
|
|
{
|
|
if(toothCurrentCount == 25) { currentStatus.hasSync = false; } //Indicates sync has not been achieved (Still waiting for 1 revolution of the crank to take place)
|
|
else
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
|
|
if(toothCurrentCount == 0)
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
revolutionOne = !revolutionOne; //Sequential revolution flip
|
|
currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
triggerToothAngle = 15; //Always 15 degrees for tooth #15
|
|
}
|
|
else
|
|
{
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
triggerToothAngle = toothAngles[(toothCurrentCount-1)] - toothAngles[(toothCurrentCount-2)]; //Calculate the last tooth gap in degrees
|
|
}
|
|
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothLastToothTime = curTime;
|
|
|
|
|
|
}
|
|
}
|
|
|
|
void triggerSec_24X()
|
|
{
|
|
toothCurrentCount = 0; //All we need to do is reset the tooth count back to zero, indicating that we're at the beginning of a new revolution
|
|
revolutionOne = 1; //Sequential revolution reset
|
|
}
|
|
|
|
uint16_t getRPM_24X()
|
|
{
|
|
return stdGetRPM(360);
|
|
}
|
|
int getCrankAngle_24X()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount, tempRevolutionOne;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
tempRevolutionOne = revolutionOne;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
int crankAngle;
|
|
if (tempToothCurrentCount == 0) { crankAngle = 0 + configPage4.triggerAngle; } //This is the special case to handle when the 'last tooth' seen was the cam tooth. 0 is the angle at which the crank tooth goes high (Within 360 degrees).
|
|
else { crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle;} //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
//Sequential check (simply sets whether we're on the first or 2nd revoltuion of the cycle)
|
|
if (tempRevolutionOne == 1) { crankAngle += 360; }
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_24X()
|
|
{
|
|
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Jeep 2000
|
|
Desc: For '91 to 2000 6 cylinder Jeep engines
|
|
Note: Quite similar to the 24X setup. 24 crank teeth over 720 degrees, in groups of 4. Crank wheel is high for 360 crank degrees. AS we only need timing within 360 degrees, only 12 tooth angles are defined.
|
|
Tooth number 1 represents the first tooth seen after the cam signal goes high
|
|
www.speeduino.com/forum/download/file.php?id=205
|
|
*/
|
|
void triggerSetup_Jeep2000()
|
|
{
|
|
triggerToothAngle = 0; //The number of degrees that passes from tooth to tooth (primary)
|
|
toothAngles[0] = 174;
|
|
toothAngles[1] = 194;
|
|
toothAngles[2] = 214;
|
|
toothAngles[3] = 234;
|
|
toothAngles[4] = 294;
|
|
toothAngles[5] = 314;
|
|
toothAngles[6] = 334;
|
|
toothAngles[7] = 354;
|
|
toothAngles[8] = 414;
|
|
toothAngles[9] = 434;
|
|
toothAngles[10] = 454;
|
|
toothAngles[11] = 474;
|
|
|
|
MAX_STALL_TIME = (3333UL * 60); //Minimum 50rpm. (3333uS is the time per degree at 50rpm). Largest gap between teeth is 60 degrees.
|
|
if(initialisationComplete == false) { toothCurrentCount = 13; toothLastToothTime = micros(); } //Set a startup value here to avoid filter errors when starting. This MUST have the initi check to prevent the fuel pump just staying on all the time
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
|
|
void triggerPri_Jeep2000()
|
|
{
|
|
if(toothCurrentCount == 13) { currentStatus.hasSync = false; } //Indicates sync has not been achieved (Still waiting for 1 revolution of the crank to take place)
|
|
else
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( curGap >= triggerFilterTime )
|
|
{
|
|
if(toothCurrentCount == 0)
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
triggerToothAngle = 60; //There are groups of 4 pulses (Each 20 degrees apart), with each group being 60 degrees apart. Hence #1 is always 60
|
|
}
|
|
else
|
|
{
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
triggerToothAngle = toothAngles[(toothCurrentCount-1)] - toothAngles[(toothCurrentCount-2)]; //Calculate the last tooth gap in degrees
|
|
}
|
|
|
|
setFilter(curGap); //Recalc the new filter value
|
|
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
} //Trigger filter
|
|
} //Sync check
|
|
}
|
|
void triggerSec_Jeep2000()
|
|
{
|
|
toothCurrentCount = 0; //All we need to do is reset the tooth count back to zero, indicating that we're at the beginning of a new revolution
|
|
return;
|
|
}
|
|
|
|
uint16_t getRPM_Jeep2000()
|
|
{
|
|
return stdGetRPM(360);
|
|
}
|
|
int getCrankAngle_Jeep2000()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
int crankAngle;
|
|
if (toothCurrentCount == 0) { crankAngle = 146 + configPage4.triggerAngle; } //This is the special case to handle when the 'last tooth' seen was the cam tooth. 146 is the angle at which the crank tooth goes high.
|
|
else { crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle;} //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Jeep2000()
|
|
{
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Audi 135
|
|
Desc: 135 teeth on the crank and 1 tooth on the cam.
|
|
Note: This is very similar to the dual wheel decoder, however due to the 135 teeth not dividing evenly into 360, only every 3rd crank tooth is used in calculating the crank angle. This effectively makes it a 45 tooth dual wheel setup
|
|
*/
|
|
void triggerSetup_Audi135()
|
|
{
|
|
triggerToothAngle = 8; //135/3 = 45, 360/45 = 8 degrees every 3 teeth
|
|
toothCurrentCount = 255; //Default value
|
|
toothSystemCount = 0;
|
|
triggerFilterTime = (unsigned long)(1000000 / (MAX_RPM / 60 * 135UL)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
|
|
void triggerPri_Audi135()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothSystemLastToothTime;
|
|
if ( (curGap > triggerFilterTime) || (currentStatus.startRevolutions == 0) )
|
|
{
|
|
toothSystemCount++;
|
|
|
|
if ( currentStatus.hasSync == false ) { toothLastToothTime = curTime; }
|
|
else
|
|
{
|
|
if ( toothSystemCount >= 3 )
|
|
{
|
|
//We only proceed for every third tooth
|
|
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
toothSystemLastToothTime = curTime;
|
|
toothSystemCount = 0;
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
|
|
if ( (toothCurrentCount == 1) || (toothCurrentCount > 45) )
|
|
{
|
|
toothCurrentCount = 1;
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
revolutionOne = !revolutionOne;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
|
|
setFilter(curGap); //Recalc the new filter value
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
} //3rd tooth check
|
|
} // Sync check
|
|
} // Trigger filter
|
|
}
|
|
|
|
void triggerSec_Audi135()
|
|
{
|
|
/*
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
if ( curGap2 < triggerSecFilterTime ) { return; }
|
|
toothLastSecToothTime = curTime2;
|
|
*/
|
|
|
|
if( currentStatus.hasSync == false )
|
|
{
|
|
toothCurrentCount = 0;
|
|
currentStatus.hasSync = true;
|
|
toothSystemCount = 3; //Need to set this to 3 so that the next primary tooth is counted
|
|
}
|
|
else if (configPage4.useResync == 1) { toothCurrentCount = 0; toothSystemCount = 3; }
|
|
else if ( (currentStatus.startRevolutions < 100) && (toothCurrentCount != 45) ) { toothCurrentCount = 0; }
|
|
revolutionOne = 1; //Sequential revolution reset
|
|
}
|
|
|
|
uint16_t getRPM_Audi135()
|
|
{
|
|
return stdGetRPM(360);
|
|
}
|
|
|
|
int getCrankAngle_Audi135()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
bool tempRevolutionOne;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
tempRevolutionOne = revolutionOne;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
//Handle case where the secondary tooth was the last one seen
|
|
if(tempToothCurrentCount == 0) { tempToothCurrentCount = 45; }
|
|
|
|
int crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
//Sequential check (simply sets whether we're on the first or 2nd revoltuion of the cycle)
|
|
if (tempRevolutionOne) { crankAngle += 360; }
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
else if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += CRANK_ANGLE_MAX; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Audi135()
|
|
{
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Honda D17
|
|
Desc:
|
|
Note:
|
|
*/
|
|
void triggerSetup_HondaD17()
|
|
{
|
|
triggerToothAngle = 360 / 12; //The number of degrees that passes from tooth to tooth
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
}
|
|
|
|
void triggerPri_HondaD17()
|
|
{
|
|
lastGap = curGap;
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
//
|
|
if( (toothCurrentCount == 13) && (currentStatus.hasSync == true) )
|
|
{
|
|
toothCurrentCount = 0;
|
|
}
|
|
else if( (toothCurrentCount == 1) && (currentStatus.hasSync == true) )
|
|
{
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
}
|
|
else
|
|
{
|
|
//13th tooth
|
|
targetGap = (lastGap) >> 1; //The target gap is set at half the last tooth gap
|
|
if ( curGap < targetGap) //If the gap between this tooth and the last one is less than half of the previous gap, then we are very likely at the magical 13th tooth
|
|
{
|
|
toothCurrentCount = 0;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else
|
|
{
|
|
//The tooth times below don't get set on tooth 13(The magical 13th tooth should not be considered for any calculations that use those times)
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
}
|
|
}
|
|
|
|
}
|
|
void triggerSec_HondaD17() { return; } //The 4+1 signal on the cam is yet to be supported
|
|
uint16_t getRPM_HondaD17()
|
|
{
|
|
return stdGetRPM(360);
|
|
}
|
|
int getCrankAngle_HondaD17()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
//Check if the last tooth seen was the reference tooth 13 (Number 0 here). All others can be calculated, but tooth 3 has a unique angle
|
|
int crankAngle;
|
|
if( tempToothCurrentCount == 0 )
|
|
{
|
|
crankAngle = (11 * triggerToothAngle) + configPage4.triggerAngle; //if temptoothCurrentCount is 0, the last tooth seen was the 13th one. Based on this, ignore the 13th tooth and use the 12th one as the last reference.
|
|
}
|
|
else
|
|
{
|
|
crankAngle = ((tempToothCurrentCount - 1) * triggerToothAngle) + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_HondaD17()
|
|
{
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Miata '99 to '05
|
|
Desc: TBA (See: www.forum.diyefi.org/viewtopic.php?f=56&t=1077)
|
|
Note: 4x 70 degree duration teeth running at cam speed. Believed to be at the same angles as the 4g63 decoder
|
|
Tooth #1 is defined as the next crank tooth after the crank signal is HIGH when the cam signal is falling.
|
|
Tooth number one is at 355* ATDC
|
|
*/
|
|
void triggerSetup_Miata9905()
|
|
{
|
|
triggerToothAngle = 90; //The number of degrees that passes from tooth to tooth (primary)
|
|
toothCurrentCount = 99; //Fake tooth count represents no sync
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
triggerActualTeeth = 8;
|
|
|
|
if(initialisationComplete == false) { secondaryToothCount = 0; toothLastToothTime = micros(); } //Set a startup value here to avoid filter errors when starting. This MUST have the initi check to prevent the fuel pump just staying on all the time
|
|
else { toothLastToothTime = 0; }
|
|
toothLastMinusOneToothTime = 0;
|
|
|
|
//Note that these angles are for every rising and falling edge
|
|
|
|
/*
|
|
toothAngles[0] = 350;
|
|
toothAngles[1] = 100;
|
|
toothAngles[2] = 170;
|
|
toothAngles[3] = 280;
|
|
*/
|
|
|
|
toothAngles[0] = 710; //
|
|
toothAngles[1] = 100; //First crank pulse after the SINGLE cam pulse
|
|
toothAngles[2] = 170; //
|
|
toothAngles[3] = 280; //
|
|
toothAngles[4] = 350; //
|
|
toothAngles[5] = 460; //First crank pulse AFTER the DOUBLE cam pulse
|
|
toothAngles[6] = 530; //
|
|
toothAngles[7] = 640; //
|
|
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
triggerFilterTime = 1500; //10000 rpm, assuming we're triggering on both edges off the crank tooth.
|
|
triggerSecFilterTime = 0; //Need to figure out something better for this
|
|
decoderHasFixedCrankingTiming = true;
|
|
triggerToothAngleIsCorrect = true;
|
|
}
|
|
|
|
void triggerPri_Miata9905()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( (curGap >= triggerFilterTime) || (currentStatus.startRevolutions == 0) )
|
|
{
|
|
toothCurrentCount++;
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
if( (toothCurrentCount == (triggerActualTeeth + 1)) )
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
//currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
else
|
|
{
|
|
if( (currentStatus.hasSync == false) || (configPage4.useResync == true) )
|
|
{
|
|
if(secondaryToothCount == 2)
|
|
{
|
|
toothCurrentCount = 6;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
|
|
//Whilst this is an uneven tooth pattern, if the specific angle between the last 2 teeth is specified, 1st deriv prediction can be used
|
|
if( (configPage4.triggerFilter == 1) || (currentStatus.RPM < 1400) )
|
|
{
|
|
//Lite filter
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) ) { triggerToothAngle = 70; triggerFilterTime = curGap; } //Trigger filter is set to whatever time it took to do 70 degrees (Next trigger is 110 degrees away)
|
|
else { triggerToothAngle = 110; triggerFilterTime = (curGap * 3) >> 3; } //Trigger filter is set to (110*3)/8=41.25=41 degrees (Next trigger is 70 degrees away).
|
|
}
|
|
else if(configPage4.triggerFilter == 2)
|
|
{
|
|
//Medium filter level
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) ) { triggerToothAngle = 70; triggerFilterTime = (curGap * 5) >> 2 ; } //87.5 degrees with a target of 110
|
|
else { triggerToothAngle = 110; triggerFilterTime = (curGap >> 1); } //55 degrees with a target of 70
|
|
}
|
|
else if (configPage4.triggerFilter == 3)
|
|
{
|
|
//Aggressive filter level
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) ) { triggerToothAngle = 70; triggerFilterTime = (curGap * 11) >> 3 ; } //96.26 degrees with a target of 110
|
|
else { triggerToothAngle = 110; triggerFilterTime = (curGap * 9) >> 5; } //61.87 degrees with a target of 70
|
|
}
|
|
else if (configPage4.triggerFilter == 0)
|
|
{
|
|
//trigger filter is turned off.
|
|
triggerFilterTime = 0;
|
|
triggerSecFilterTime = 0;
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) || (toothCurrentCount == 5) || (toothCurrentCount == 7) ) { triggerToothAngle = 70; } //96.26 degrees with a target of 110
|
|
else { triggerToothAngle = 110; }
|
|
}
|
|
|
|
//EXPERIMENTAL!
|
|
//New ignition mode is ONLY available on 9905 when the trigger angle is set to the stock value of 0.
|
|
if( (configPage2.perToothIgn == true) || (configPage4.triggerAngle == 0) )
|
|
{
|
|
if (currentStatus.advance > 0)
|
|
{
|
|
uint16_t crankAngle = ignitionLimits( toothAngles[(toothCurrentCount-1)] );
|
|
|
|
//Handle non-sequential tooth counts
|
|
if( (configPage4.sparkMode != IGN_MODE_SEQUENTIAL) && (toothCurrentCount > configPage2.nCylinders) ) { checkPerToothTiming(crankAngle, (toothCurrentCount-configPage2.nCylinders) ); }
|
|
else { checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
}
|
|
|
|
} //Has sync
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
//if ( BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) && configPage4.ignCranklock)
|
|
if ( (currentStatus.RPM < (currentStatus.crankRPM + 30)) && (configPage4.ignCranklock) ) //The +30 here is a safety margin. When switching from fixed timing to normal, there can be a situation where a pulse started when fixed and ending when in normal mode causes problems. This prevents that.
|
|
{
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 5) ) { endCoil1Charge(); endCoil3Charge(); }
|
|
else if( (toothCurrentCount == 3) || (toothCurrentCount == 7) ) { endCoil2Charge(); endCoil4Charge(); }
|
|
}
|
|
secondaryToothCount = 0;
|
|
} //Trigger filter
|
|
|
|
}
|
|
|
|
void triggerSec_Miata9905()
|
|
{
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
|
|
if(BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) || (currentStatus.hasSync == false) )
|
|
{
|
|
triggerFilterTime = 1500; //If this is removed, can have trouble getting sync again after the engine is turned off (but ECU not reset).
|
|
}
|
|
|
|
if ( curGap2 >= triggerSecFilterTime )
|
|
{
|
|
toothLastSecToothTime = curTime2;
|
|
lastGap = curGap2;
|
|
secondaryToothCount++;
|
|
|
|
//TODO Add some secondary filtering here
|
|
|
|
//Record the VVT tooth time
|
|
if( (toothCurrentCount == 1) && (curTime2 > toothLastToothTime) )
|
|
{
|
|
lastVVTtime = curTime2 - toothLastToothTime;
|
|
}
|
|
}
|
|
}
|
|
|
|
uint16_t getRPM_Miata9905()
|
|
{
|
|
//During cranking, RPM is calculated 4 times per revolution, once for each tooth on the crank signal.
|
|
//Because these signals aren't even (Alternating 110 and 70 degrees), this needs a special function
|
|
uint16_t tempRPM = 0;
|
|
if( (currentStatus.RPM < currentStatus.crankRPM) && (currentStatus.hasSync == true) )
|
|
{
|
|
if( (toothLastToothTime == 0) || (toothLastMinusOneToothTime == 0) ) { tempRPM = 0; }
|
|
else
|
|
{
|
|
int tempToothAngle;
|
|
unsigned long toothTime;
|
|
noInterrupts();
|
|
tempToothAngle = triggerToothAngle;
|
|
toothTime = (toothLastToothTime - toothLastMinusOneToothTime); //Note that trigger tooth angle changes between 70 and 110 depending on the last tooth that was seen
|
|
interrupts();
|
|
toothTime = toothTime * 36;
|
|
tempRPM = ((unsigned long)tempToothAngle * 6000000UL) / toothTime;
|
|
revolutionTime = (10UL * toothTime) / tempToothAngle;
|
|
MAX_STALL_TIME = 366667UL; // 50RPM
|
|
}
|
|
}
|
|
else
|
|
{
|
|
tempRPM = stdGetRPM(720);
|
|
MAX_STALL_TIME = revolutionTime << 1; //Set the stall time to be twice the current RPM. This is a safe figure as there should be no single revolution where this changes more than this
|
|
if(MAX_STALL_TIME < 366667UL) { MAX_STALL_TIME = 366667UL; } //Check for 50rpm minimum
|
|
}
|
|
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_Miata9905()
|
|
{
|
|
int crankAngle = 0;
|
|
//if(currentStatus.hasSync == true)
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle; //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
}
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
int getCamAngle_Miata9905()
|
|
{
|
|
//lastVVTtime is the time between tooth #1 (10* BTDC) and the single cam tooth.
|
|
//All cam angles in in BTDC, so the actual advance angle is 370 - fastTimeToAngle(lastVVTtime) - <the angle of the cam at 0 advance>
|
|
currentStatus.vvtAngle = 370 - fastTimeToAngle(lastVVTtime) - configPage10.vvtCLMinAng;
|
|
|
|
return currentStatus.vvtAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Miata9905()
|
|
{
|
|
|
|
if(configPage4.sparkMode == IGN_MODE_SEQUENTIAL)
|
|
{
|
|
if(currentStatus.advance >= 10)
|
|
{
|
|
ignition1EndTooth = 8;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4;
|
|
ignition4EndTooth = 6;
|
|
}
|
|
else if (currentStatus.advance > 0)
|
|
{
|
|
ignition1EndTooth = 1;
|
|
ignition2EndTooth = 3;
|
|
ignition3EndTooth = 5;
|
|
ignition4EndTooth = 7;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if(currentStatus.advance >= 10)
|
|
{
|
|
ignition1EndTooth = 4;
|
|
ignition2EndTooth = 2;
|
|
ignition3EndTooth = 4; //Not used
|
|
ignition4EndTooth = 2; //Not used
|
|
}
|
|
else if(currentStatus.advance > 0)
|
|
{
|
|
ignition1EndTooth = 1;
|
|
ignition2EndTooth = 3;
|
|
ignition3EndTooth = 1; //Not used
|
|
ignition4EndTooth = 3; //Not used
|
|
}
|
|
}
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Mazda AU version
|
|
Desc:
|
|
Note:
|
|
Tooth #2 is defined as the next crank tooth after the single cam tooth
|
|
Tooth number one is at 348* ATDC
|
|
*/
|
|
void triggerSetup_MazdaAU()
|
|
{
|
|
triggerToothAngle = 108; //The number of degrees that passes from tooth to tooth (primary). This is the maximum gap
|
|
toothCurrentCount = 99; //Fake tooth count represents no sync
|
|
secondaryToothCount = 0; //Needed for the cam tooth tracking
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
|
|
toothAngles[0] = 348; //tooth #1
|
|
toothAngles[1] = 96; //tooth #2
|
|
toothAngles[2] = 168; //tooth #3
|
|
toothAngles[3] = 276; //tooth #4
|
|
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
triggerFilterTime = 1500; //10000 rpm, assuming we're triggering on both edges off the crank tooth.
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
decoderHasFixedCrankingTiming = true;
|
|
}
|
|
|
|
void triggerPri_MazdaAU()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
if ( curGap >= triggerFilterTime )
|
|
{
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothCurrentCount++;
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 5) ) //Trigger is on CHANGE, hence 4 pulses = 1 crank rev
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
// Locked cranking timing is available, fixed at 12* BTDC
|
|
if ( BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) && configPage4.ignCranklock )
|
|
{
|
|
if( toothCurrentCount == 1 ) { endCoil1Charge(); }
|
|
else if( toothCurrentCount == 3 ) { endCoil2Charge(); }
|
|
}
|
|
|
|
//Whilst this is an uneven tooth pattern, if the specific angle between the last 2 teeth is specified, 1st deriv prediction can be used
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 3) ) { triggerToothAngle = 72; triggerFilterTime = curGap; } //Trigger filter is set to whatever time it took to do 72 degrees (Next trigger is 108 degrees away)
|
|
else { triggerToothAngle = 108; triggerFilterTime = (curGap * 3) >> 3; } //Trigger filter is set to (108*3)/8=40 degrees (Next trigger is 70 degrees away).
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
} //Has sync
|
|
} //Filter time
|
|
}
|
|
|
|
void triggerSec_MazdaAU()
|
|
{
|
|
curTime2 = micros();
|
|
lastGap = curGap2;
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
//if ( curGap2 < triggerSecFilterTime ) { return; }
|
|
toothLastSecToothTime = curTime2;
|
|
|
|
//if(BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) || currentStatus.hasSync == false)
|
|
if(currentStatus.hasSync == false)
|
|
{
|
|
//we find sync by looking for the 2 teeth that are close together. The next crank tooth after that is the one we're looking for.
|
|
//For the sake of this decoder, the lone cam tooth will be designated #1
|
|
if(secondaryToothCount == 2)
|
|
{
|
|
toothCurrentCount = 1;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else
|
|
{
|
|
triggerFilterTime = 1500; //In case the engine has been running and then lost sync.
|
|
targetGap = (lastGap) >> 1; //The target gap is set at half the last tooth gap
|
|
if ( curGap2 < targetGap) //If the gap between this tooth and the last one is less than half of the previous gap, then we are very likely at the extra (3rd) tooth on the cam). This tooth is located at 421 crank degrees (aka 61 degrees) and therefore the last crank tooth seen was number 1 (At 350 degrees)
|
|
{
|
|
secondaryToothCount = 2;
|
|
}
|
|
}
|
|
secondaryToothCount++;
|
|
}
|
|
}
|
|
|
|
|
|
uint16_t getRPM_MazdaAU()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
//During cranking, RPM is calculated 4 times per revolution, once for each tooth on the crank signal.
|
|
//Because these signals aren't even (Alternating 108 and 72 degrees), this needs a special function
|
|
if(currentStatus.RPM < currentStatus.crankRPM)
|
|
{
|
|
int tempToothAngle;
|
|
noInterrupts();
|
|
tempToothAngle = triggerToothAngle;
|
|
revolutionTime = (toothLastToothTime - toothLastMinusOneToothTime); //Note that trigger tooth angle changes between 72 and 108 depending on the last tooth that was seen
|
|
interrupts();
|
|
revolutionTime = revolutionTime * 36;
|
|
tempRPM = (tempToothAngle * 60000000L) / revolutionTime;
|
|
}
|
|
else { tempRPM = stdGetRPM(360); }
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_MazdaAU()
|
|
{
|
|
int crankAngle = 0;
|
|
if(currentStatus.hasSync == true)
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle; //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
}
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_MazdaAU()
|
|
{
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/*
|
|
Name: Non-360 Dual wheel
|
|
Desc: 2 wheels located either both on the crank or with the primary on the crank and the secondary on the cam.
|
|
Note: There can be no missing teeth on the primary wheel
|
|
*/
|
|
void triggerSetup_non360()
|
|
{
|
|
triggerToothAngle = (360 * configPage4.TrigAngMul) / configPage4.triggerTeeth; //The number of degrees that passes from tooth to tooth multiplied by the additional multiplier
|
|
toothCurrentCount = 255; //Default value
|
|
triggerFilterTime = (int)(1000000 / (MAX_RPM / 60 * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
}
|
|
|
|
|
|
void triggerPri_non360()
|
|
{
|
|
//This is not used, the trigger is identical to the dual wheel one, so that is used instead.
|
|
}
|
|
|
|
void triggerSec_non360()
|
|
{
|
|
//This is not used, the trigger is identical to the dual wheel one, so that is used instead.
|
|
}
|
|
|
|
uint16_t getRPM_non360()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
if( (currentStatus.hasSync == true) && (toothCurrentCount != 0) )
|
|
{
|
|
if(currentStatus.RPM < currentStatus.crankRPM) { tempRPM = crankingGetRPM(configPage4.triggerTeeth); }
|
|
else { tempRPM = stdGetRPM(360); }
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_non360()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
//Handle case where the secondary tooth was the last one seen
|
|
if(tempToothCurrentCount == 0) { tempToothCurrentCount = configPage4.triggerTeeth; }
|
|
|
|
//Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
int crankAngle = (tempToothCurrentCount - 1) * triggerToothAngle;
|
|
crankAngle = (crankAngle / configPage4.TrigAngMul) + configPage4.triggerAngle; //Have to divide by the multiplier to get back to actual crank angle.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_non360()
|
|
{
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Nissan 360 tooth with cam
|
|
Desc:
|
|
Note: wiki.r31skylineclub.com/index.php/Crank_Angle_Sensor
|
|
*/
|
|
void triggerSetup_Nissan360()
|
|
{
|
|
triggerFilterTime = (1000000 / (MAX_RPM / 60 * 360UL)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
|
|
triggerSecFilterTime = (int)(1000000 / (MAX_RPM / 60 * 2)) / 2; //Same as above, but fixed at 2 teeth on the secondary input and divided by 2 (for cam speed)
|
|
secondaryToothCount = 0; //Initially set to 0 prior to calculating the secondary window duration
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
toothCurrentCount = 1;
|
|
triggerToothAngle = 2;
|
|
MAX_STALL_TIME = (3333UL * triggerToothAngle); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
}
|
|
|
|
|
|
void triggerPri_Nissan360()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
//if ( curGap < triggerFilterTime ) { return; }
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
if ( currentStatus.hasSync == true )
|
|
{
|
|
if ( toothCurrentCount == 361 ) //2 complete crank revolutions
|
|
{
|
|
toothCurrentCount = 1;
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
//Recalc the new filter value
|
|
//setFilter(curGap);
|
|
|
|
//EXPERIMENTAL!
|
|
if(configPage2.perToothIgn == true)
|
|
{
|
|
int16_t crankAngle = ( (toothCurrentCount-1) * 2 ) + configPage4.triggerAngle;
|
|
if(crankAngle > CRANK_ANGLE_MAX_IGN)
|
|
{
|
|
crankAngle -= CRANK_ANGLE_MAX_IGN;
|
|
checkPerToothTiming(crankAngle, (toothCurrentCount/2) );
|
|
}
|
|
else
|
|
{
|
|
checkPerToothTiming(crankAngle, toothCurrentCount);
|
|
}
|
|
|
|
}
|
|
|
|
timePerDegree = curGap >> 1;; //The time per crank degree is simply the time between this tooth and the last one divided by 2
|
|
}
|
|
}
|
|
|
|
void triggerSec_Nissan360()
|
|
{
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
//if ( curGap2 < triggerSecFilterTime ) { return; }
|
|
toothLastSecToothTime = curTime2;
|
|
//OPTIONAL: Set filter at 25% of the current speed
|
|
//triggerSecFilterTime = curGap2 >> 2;
|
|
|
|
|
|
//Calculate number of primary teeth that this window has been active for
|
|
byte trigEdge;
|
|
if(configPage4.TrigEdgeSec == 0) { trigEdge = LOW; }
|
|
else { trigEdge = HIGH; }
|
|
|
|
if( (secondaryToothCount == 0) || (READ_SEC_TRIGGER() == trigEdge) ) { secondaryToothCount = toothCurrentCount; } //This occurs on the first rotation upon powerup OR the start of a secondary window
|
|
else
|
|
{
|
|
//If we reach here, we are at the end of a secondary window
|
|
byte secondaryDuration = toothCurrentCount - secondaryToothCount; //How many primary teeth have passed during the duration of this secondary window
|
|
|
|
if(currentStatus.hasSync == false)
|
|
{
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
//Supported pattern is where all the inner windows as a different size (Most SR engines)
|
|
//These equate to 4,8,12,16 teeth spacings
|
|
if( (secondaryDuration >= 15) && (secondaryDuration <= 17) ) //Duration of window = 16 primary teeth
|
|
{
|
|
toothCurrentCount = 16; //End of first window (The longest) occurs 16 teeth after TDC
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else if( (secondaryDuration >= 11) && (secondaryDuration <= 13) ) //Duration of window = 12 primary teeth
|
|
{
|
|
toothCurrentCount = 102; //End of second window is after 90+12 primary teeth
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else if( (secondaryDuration >= 7) && (secondaryDuration <= 9) ) //Duration of window = 8 primary teeth
|
|
{
|
|
toothCurrentCount = 188; //End of third window is after 90+90+8 primary teeth
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else if( (secondaryDuration >= 3) && (secondaryDuration <= 5) ) //Duration of window = 4 primary teeth
|
|
{
|
|
toothCurrentCount = 274; //End of fourth window is after 90+90+90+4 primary teeth
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else { currentStatus.hasSync = false; currentStatus.syncLossCounter++; } //This should really never happen
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
//Pattern on the 6 cylinders is 4-8-12-16-20-24
|
|
if( (secondaryDuration >= 3) && (secondaryDuration <= 5) ) //Duration of window = 4 primary teeth
|
|
{
|
|
toothCurrentCount = 124; //End of smallest window is after 60+60+4 primary teeth
|
|
currentStatus.hasSync = true;
|
|
}
|
|
}
|
|
else if(configPage2.nCylinders == 8)
|
|
{
|
|
//V8 Optispark
|
|
//Pattern on the 8 cylinders is the same as the 6 cylinder 4-8-12-16-20-24
|
|
if( (secondaryDuration >= 6) && (secondaryDuration <= 8) ) //Duration of window = 16 primary teeth
|
|
{
|
|
toothCurrentCount = 56; //End of the shortest of the individual windows. Occurs at 102 crank degrees.
|
|
currentStatus.hasSync = true;
|
|
}
|
|
}
|
|
else { currentStatus.hasSync = false; } //This should really never happen (Only 4, 6 and 8 cylinder engines for this pattern)
|
|
}
|
|
else
|
|
{
|
|
if (configPage4.useResync == true)
|
|
{
|
|
//Already have sync, but do a verify every 720 degrees.
|
|
if(configPage2.nCylinders == 4)
|
|
{
|
|
if( (secondaryDuration >= 15) && (secondaryDuration <= 17) ) //Duration of window = 16 primary teeth
|
|
{
|
|
toothCurrentCount = 16; //End of first window (The longest) occurs 16 teeth after TDC
|
|
}
|
|
}
|
|
else if(configPage2.nCylinders == 6)
|
|
{
|
|
if(secondaryDuration == 4)
|
|
{
|
|
//toothCurrentCount = 304;
|
|
}
|
|
} //Cylinder count
|
|
} //use resync
|
|
} //Has sync
|
|
} //First getting sync or not
|
|
}
|
|
|
|
uint16_t getRPM_Nissan360()
|
|
{
|
|
//Can't use stdGetRPM as there is no separate cranking RPM calc (stdGetRPM returns 0 if cranking)
|
|
uint16_t tempRPM;
|
|
if( (currentStatus.hasSync == true) && (toothLastToothTime != 0) && (toothLastMinusOneToothTime != 0) )
|
|
{
|
|
if(currentStatus.startRevolutions < 2)
|
|
{
|
|
noInterrupts();
|
|
revolutionTime = (toothLastToothTime - toothLastMinusOneToothTime) * 180; //Each tooth covers 2 crank degrees, so multiply by 180 to get a full revolution time.
|
|
interrupts();
|
|
}
|
|
else
|
|
{
|
|
noInterrupts();
|
|
revolutionTime = (toothOneTime - toothOneMinusOneTime) >> 1; //The time in uS that one revolution would take at current speed (The time tooth 1 was last seen, minus the time it was seen prior to that)
|
|
interrupts();
|
|
}
|
|
tempRPM = (US_IN_MINUTE / revolutionTime); //Calc RPM based on last full revolution time (Faster as /)
|
|
if(tempRPM >= MAX_RPM) { tempRPM = currentStatus.RPM; } //Sanity check
|
|
MAX_STALL_TIME = revolutionTime << 1; //Set the stall time to be twice the current RPM. This is a safe figure as there should be no single revolution where this changes more than this
|
|
}
|
|
else { tempRPM = 0; }
|
|
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_Nissan360()
|
|
{
|
|
//As each tooth represents 2 crank degrees, we only need to determine whether we're more or less than halfway between teeth to know whether to add another 1 degrees
|
|
int crankAngle = 0;
|
|
int tempToothLastToothTime;
|
|
int tempToothLastMinusOneToothTime;
|
|
int tempToothCurrentCount;
|
|
|
|
noInterrupts();
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
tempToothLastMinusOneToothTime = toothLastMinusOneToothTime;
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = ( (tempToothCurrentCount - 1) * 2) + configPage4.triggerAngle;
|
|
unsigned long halfTooth = (tempToothLastToothTime - tempToothLastMinusOneToothTime) >> 1;
|
|
if (elapsedTime > halfTooth)
|
|
{
|
|
//Means we're over halfway to the next tooth, so add on 1 degree
|
|
crankAngle += 1;
|
|
}
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Nissan360()
|
|
{
|
|
//This uses 4 prior teeth, just to ensure there is sufficient time to set the schedule etc
|
|
ignition1EndTooth = ( (ignition1EndAngle - configPage4.triggerAngle) / 2 ) - 4;
|
|
ignition2EndTooth = ( (ignition2EndAngle - configPage4.triggerAngle) / 2 ) - 4;
|
|
ignition3EndTooth = ( (ignition3EndAngle - configPage4.triggerAngle) / 2 ) - 4;
|
|
ignition4EndTooth = ( (ignition4EndAngle - configPage4.triggerAngle) / 2 ) - 4;
|
|
|
|
if(ignition1EndTooth < 0) { ignition1EndTooth += 360; }
|
|
if(ignition2EndTooth < 0) { ignition2EndTooth += 360; }
|
|
if(ignition3EndTooth < 0) { ignition3EndTooth += 360; }
|
|
if(ignition4EndTooth < 0) { ignition4EndTooth += 360; }
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Subaru 6/7
|
|
Desc:
|
|
Note:
|
|
*/
|
|
void triggerSetup_Subaru67()
|
|
{
|
|
triggerFilterTime = (1000000 / (MAX_RPM / 60 * 360UL)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
|
|
triggerSecFilterTime = 0;
|
|
secondaryToothCount = 0; //Initially set to 0 prior to calculating the secondary window duration
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = true;
|
|
toothCurrentCount = 1;
|
|
triggerToothAngle = 2;
|
|
triggerToothAngleIsCorrect = false;
|
|
toothSystemCount = 0;
|
|
MAX_STALL_TIME = (3333UL * 93); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
|
|
toothAngles[0] = 710; //tooth #1
|
|
toothAngles[1] = 83; //tooth #2
|
|
toothAngles[2] = 115; //tooth #3
|
|
toothAngles[3] = 170; //tooth #4
|
|
toothAngles[4] = toothAngles[1] + 180;
|
|
toothAngles[5] = toothAngles[2] + 180;
|
|
toothAngles[6] = toothAngles[3] + 180;
|
|
toothAngles[7] = toothAngles[1] + 360;
|
|
toothAngles[8] = toothAngles[2] + 360;
|
|
toothAngles[9] = toothAngles[3] + 360;
|
|
toothAngles[10] = toothAngles[1] + 540;
|
|
toothAngles[11] = toothAngles[2] + 540;
|
|
}
|
|
|
|
|
|
void triggerPri_Subaru67()
|
|
{
|
|
curTime = micros();
|
|
//curGap = curTime - toothLastToothTime;
|
|
//if ( curGap < triggerFilterTime ) { return; }
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
toothSystemCount++; //Used to count the number of primary pulses that have occurred since the last secondary. Is part of the noise filtering system.
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
if ( (currentStatus.hasSync == false) || (configPage4.useResync == true) )
|
|
{
|
|
if(toothCurrentCount > 12) { toothCurrentCount = toothCurrentCount % 12; } //Because toothCurrentCount is not being reset when hitting tooth 1, we manually loop it here.
|
|
|
|
//Sync is determined by counting the number of cam teeth that have passed between the crank teeth
|
|
switch(secondaryToothCount)
|
|
{
|
|
case 0:
|
|
//If no teeth have passed, we can't do anything
|
|
break;
|
|
|
|
case 1:
|
|
//Can't do anything with a single pulse from the cam either (We need either 2 or 3 pulses)
|
|
secondaryToothCount = 0;
|
|
break;
|
|
|
|
case 2:
|
|
toothCurrentCount = 8;
|
|
//currentStatus.hasSync = true;
|
|
secondaryToothCount = 0;
|
|
break;
|
|
|
|
case 3:
|
|
//toothCurrentCount = 2;
|
|
if( toothCurrentCount == 2)
|
|
{
|
|
currentStatus.hasSync = true;
|
|
}
|
|
secondaryToothCount = 0;
|
|
break;
|
|
|
|
default:
|
|
//Almost certainly due to noise or cranking stop/start
|
|
currentStatus.hasSync = false;
|
|
triggerToothAngleIsCorrect = false;
|
|
currentStatus.syncLossCounter++;
|
|
secondaryToothCount = 0;
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
//Check sync again
|
|
if ( currentStatus.hasSync == true )
|
|
{
|
|
//Locked timing during cranking. This is fixed at 10* BTDC.
|
|
if ( BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) && configPage4.ignCranklock)
|
|
{
|
|
if( (toothCurrentCount == 1) || (toothCurrentCount == 7) ) { endCoil1Charge(); endCoil3Charge(); }
|
|
else if( (toothCurrentCount == 4) || (toothCurrentCount == 10) ) { endCoil2Charge(); endCoil4Charge(); }
|
|
}
|
|
|
|
if ( toothCurrentCount > 12 ) //2 complete crank revolutions
|
|
{
|
|
toothCurrentCount = 1;
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
|
|
//Set the last angle between teeth for better calc accuracy
|
|
if(toothCurrentCount == 1) { triggerToothAngle = 55; } //Special case for tooth 1
|
|
else if(toothCurrentCount == 2) { triggerToothAngle = 93; } //Special case for tooth 2
|
|
else { triggerToothAngle = toothAngles[(toothCurrentCount-1)] - toothAngles[(toothCurrentCount-2)]; }
|
|
triggerToothAngleIsCorrect = true;
|
|
|
|
|
|
//NEW IGNITION MODE
|
|
if( (configPage2.perToothIgn == true) && (!BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK)) )
|
|
{
|
|
int16_t crankAngle = toothAngles[(toothCurrentCount - 1)] + configPage4.triggerAngle;
|
|
if( (configPage4.sparkMode != IGN_MODE_SEQUENTIAL) )
|
|
{
|
|
crankAngle = ignitionLimits( toothAngles[(toothCurrentCount-1)] );
|
|
|
|
//Handle non-sequential tooth counts
|
|
if( (configPage4.sparkMode != IGN_MODE_SEQUENTIAL) && (toothCurrentCount > 6) ) { checkPerToothTiming(crankAngle, (toothCurrentCount-6) ); }
|
|
else { checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
else{ checkPerToothTiming(crankAngle, toothCurrentCount); }
|
|
}
|
|
//Recalc the new filter value
|
|
//setFilter(curGap);
|
|
}
|
|
}
|
|
|
|
void triggerSec_Subaru67()
|
|
{
|
|
if( (toothSystemCount == 0) || (toothSystemCount == 3) )
|
|
{
|
|
curTime2 = micros();
|
|
curGap2 = curTime2 - toothLastSecToothTime;
|
|
|
|
if ( curGap2 > triggerSecFilterTime )
|
|
{
|
|
toothLastSecToothTime = curTime2;
|
|
secondaryToothCount++;
|
|
toothSystemCount = 0;
|
|
|
|
if(secondaryToothCount > 1)
|
|
{
|
|
//Set filter at 25% of the current speed
|
|
//Note that this can only be set on the 2nd or 3rd cam tooth in each set.
|
|
triggerSecFilterTime = curGap2 >> 2;
|
|
}
|
|
else { triggerSecFilterTime = 0; } //Filter disabled
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//Sanity check
|
|
if(toothSystemCount > 3)
|
|
{
|
|
toothSystemCount = 0;
|
|
secondaryToothCount = 1;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
uint16_t getRPM_Subaru67()
|
|
{
|
|
//if(currentStatus.RPM < currentStatus.crankRPM) { return crankingGetRPM(configPage4.triggerTeeth); }
|
|
|
|
uint16_t tempRPM = 0;
|
|
if(currentStatus.startRevolutions > 0)
|
|
{
|
|
//As the tooth count is over 720 degrees
|
|
tempRPM = stdGetRPM(720);
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
int getCrankAngle_Subaru67()
|
|
{
|
|
int crankAngle = 0;
|
|
if( currentStatus.hasSync == true )
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = toothAngles[(tempToothCurrentCount - 1)] + configPage4.triggerAngle; //Perform a lookup of the fixed toothAngles array to find what the angle of the last tooth passed was.
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_TOOTH);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += 360; }
|
|
}
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Subaru67()
|
|
{
|
|
if(configPage4.sparkMode == IGN_MODE_SEQUENTIAL)
|
|
{
|
|
//if(ignition1EndAngle < 710) { ignition1EndTooth = 12; }
|
|
if(currentStatus.advance >= 10 )
|
|
{
|
|
ignition1EndTooth = 12;
|
|
ignition2EndTooth = 3;
|
|
ignition3EndTooth = 6;
|
|
ignition4EndTooth = 9;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 1;
|
|
ignition2EndTooth = 4;
|
|
ignition3EndTooth = 7;
|
|
ignition4EndTooth = 10;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(currentStatus.advance >= 10 )
|
|
{
|
|
ignition1EndTooth = 6;
|
|
ignition2EndTooth = 3;
|
|
//ignition3EndTooth = 6;
|
|
//ignition4EndTooth = 9;
|
|
}
|
|
else
|
|
{
|
|
ignition1EndTooth = 1;
|
|
ignition2EndTooth = 4;
|
|
//ignition3EndTooth = 7;
|
|
//ignition4EndTooth = 10;
|
|
}
|
|
}
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Name: Daihatsu +1 trigger for 3 and 4 cylinder engines
|
|
Desc: Tooth equal to the number of cylinders are evenly spaced on the cam. No position sensing (Distributor is retained) so crank angle is a made up figure based purely on the first teeth to be seen
|
|
Note: This is a very simple decoder. See www.megamanual.com/ms2/GM_7pinHEI.htm
|
|
*/
|
|
void triggerSetup_Daihatsu()
|
|
{
|
|
triggerActualTeeth = configPage2.nCylinders + 1;
|
|
triggerToothAngle = 720 / triggerActualTeeth; //The number of degrees that passes from tooth to tooth
|
|
triggerFilterTime = 60000000L / MAX_RPM / configPage2.nCylinders; // Minimum time required between teeth
|
|
triggerFilterTime = triggerFilterTime / 2; //Safety margin
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
|
|
MAX_STALL_TIME = (1851UL * triggerToothAngle)*4;//Minimum 90rpm. (1851uS is the time per degree at 90rpm). This uses 90rpm rather than 50rpm due to the potentially very high stall time on a 4 cylinder if we wait that long.
|
|
|
|
if(configPage2.nCylinders == 3)
|
|
{
|
|
toothAngles[0] = 0; //tooth #1
|
|
toothAngles[1] = 30; //tooth #2 (Extra tooth)
|
|
toothAngles[2] = 240; //tooth #3
|
|
toothAngles[3] = 480; //tooth #4
|
|
}
|
|
else
|
|
{
|
|
//Should be 4 cylinders here
|
|
toothAngles[0] = 0; //tooth #1
|
|
toothAngles[1] = 30; //tooth #2 (Extra tooth)
|
|
toothAngles[2] = 180; //tooth #3
|
|
toothAngles[3] = 360; //tooth #4
|
|
toothAngles[4] = 540; //tooth #5
|
|
}
|
|
}
|
|
|
|
void triggerPri_Daihatsu()
|
|
{
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
|
|
//if ( curGap >= triggerFilterTime || (currentStatus.startRevolutions == 0 )
|
|
{
|
|
toothSystemCount++;
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
if( (toothCurrentCount == triggerActualTeeth) ) //Check if we're back to the beginning of a revolution
|
|
{
|
|
toothCurrentCount = 1; //Reset the counter
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.hasSync = true;
|
|
currentStatus.startRevolutions++; //Counter
|
|
|
|
//Need to set a special filter time for the next tooth
|
|
triggerFilterTime = 20; //Fix this later
|
|
}
|
|
else
|
|
{
|
|
toothCurrentCount++; //Increment the tooth counter
|
|
setFilter(curGap); //Recalc the new filter value
|
|
}
|
|
|
|
if ( configPage4.ignCranklock && BIT_CHECK(currentStatus.engine, BIT_ENGINE_CRANK) )
|
|
{
|
|
//This locks the cranking timing to 0 degrees BTDC (All the triggers allow for)
|
|
if(toothCurrentCount == 1) { endCoil1Charge(); }
|
|
else if(toothCurrentCount == 2) { endCoil2Charge(); }
|
|
else if(toothCurrentCount == 3) { endCoil3Charge(); }
|
|
else if(toothCurrentCount == 4) { endCoil4Charge(); }
|
|
}
|
|
}
|
|
else //NO SYNC
|
|
{
|
|
//
|
|
if(toothSystemCount >= 3) //Need to have seen at least 3 teeth to determine SYNC
|
|
{
|
|
unsigned long targetTime;
|
|
//We need to try and find the extra tooth (#2) which is located 30 degrees after tooth #1
|
|
//Aim for tooth times less than about 60 degrees
|
|
if(configPage2.nCylinders == 3)
|
|
{
|
|
targetTime = (toothLastToothTime - toothLastMinusOneToothTime) / 4; //Teeth are 240 degrees apart for 3 cylinder. 240/4 = 60
|
|
}
|
|
else
|
|
{
|
|
targetTime = ((toothLastToothTime - toothLastMinusOneToothTime) * 3) / 8; //Teeth are 180 degrees apart for 4 cylinder. (180*3)/8 = 67
|
|
}
|
|
if(curGap < targetTime)
|
|
{
|
|
//Means we're on the extra tooth here
|
|
toothCurrentCount = 2; //Reset the counter
|
|
currentStatus.hasSync = true;
|
|
triggerFilterTime = targetTime; //Lazy, but it works
|
|
}
|
|
}
|
|
}
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
} //Trigger filter
|
|
}
|
|
void triggerSec_Daihatsu() { return; } //Not required (Should never be called in the first place)
|
|
|
|
uint16_t getRPM_Daihatsu()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
if( (currentStatus.RPM < currentStatus.crankRPM) && false) //Disable special cranking processing for now
|
|
{
|
|
//Cn't use standard cranking RPM functin due to extra tooth
|
|
if( currentStatus.hasSync == true )
|
|
{
|
|
if(toothCurrentCount == 2) { tempRPM = currentStatus.RPM; }
|
|
else if (toothCurrentCount == 3) { tempRPM = currentStatus.RPM; }
|
|
else
|
|
{
|
|
noInterrupts();
|
|
revolutionTime = (toothLastToothTime - toothLastMinusOneToothTime) * (triggerActualTeeth-1);
|
|
interrupts();
|
|
tempRPM = (US_IN_MINUTE / revolutionTime);
|
|
if(tempRPM >= MAX_RPM) { tempRPM = currentStatus.RPM; } //Sanity check
|
|
} //is tooth #2
|
|
}
|
|
else { tempRPM = 0; } //No sync
|
|
}
|
|
else
|
|
{ tempRPM = stdGetRPM(720); } //TRacking over 2 crank revolutions
|
|
|
|
return tempRPM;
|
|
|
|
}
|
|
int getCrankAngle_Daihatsu()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
int crankAngle;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
crankAngle = toothAngles[tempToothCurrentCount-1] + configPage4.triggerAngle; //Crank angle of the last tooth seen
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
|
if (crankAngle < 0) { crankAngle += CRANK_ANGLE_MAX; }
|
|
|
|
return crankAngle;
|
|
}
|
|
|
|
void triggerSetEndTeeth_Daihatsu()
|
|
{
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
Code for decoder.ino
|
|
Name: Harley
|
|
Desc: 2 uneven Spaced Tooth
|
|
Note: Within the code below, the sync tooth is referred to as tooth #1.
|
|
Derived from GMX7 and adapted for Harley
|
|
Only rising Edge is used for simplisity.The second input is ignored, as it does not help to desolve cam position
|
|
*/
|
|
void triggerSetup_Harley()
|
|
{
|
|
triggerToothAngle = 0; // The number of degrees that passes from tooth to tooth, ev. 0. It alternates uneven
|
|
secondDerivEnabled = false;
|
|
decoderIsSequential = false;
|
|
MAX_STALL_TIME = (3333UL * 60); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
|
|
if(initialisationComplete == false) { toothLastToothTime = micros(); } //Set a startup value here to avoid filter errors when starting. This MUST have the initi check to prevent the fuel pump just staying on all the time
|
|
triggerFilterTime = 1500;
|
|
}
|
|
|
|
void triggerPri_Harley()
|
|
{
|
|
lastGap = curGap;
|
|
curTime = micros();
|
|
curGap = curTime - toothLastToothTime;
|
|
setFilter(curGap); // Filtering adjusted according to setting
|
|
if (curGap > triggerFilterTime)
|
|
{
|
|
if ( READ_PRI_TRIGGER() == HIGH) // Has to be the same as in main() trigger-attach, for readability we do it this way.
|
|
{
|
|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
|
|
targetGap = lastGap ; //Gap is the Time to next toothtrigger, so we know where we are
|
|
toothCurrentCount++;
|
|
if (curGap > targetGap)
|
|
{
|
|
toothCurrentCount = 1;
|
|
triggerToothAngle = 0;// Has to be equal to Angle Routine
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else
|
|
{
|
|
toothCurrentCount = 2;
|
|
triggerToothAngle = 157;
|
|
// toothOneMinusOneTime = toothOneTime;
|
|
// toothOneTime = curTime;
|
|
}
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
}
|
|
else
|
|
{
|
|
if (currentStatus.hasSync == true) { currentStatus.syncLossCounter++; }
|
|
currentStatus.hasSync = false;
|
|
toothCurrentCount = 0;
|
|
} //Primary trigger high
|
|
} //Trigger filter
|
|
}
|
|
|
|
|
|
void triggerSec_Harley()
|
|
// Needs to be enabled in main()
|
|
{
|
|
return;// No need for now. The only thing it could help to sync more quikly or confirm position.
|
|
} // End Sec Trigger
|
|
|
|
|
|
uint16_t getRPM_Harley()
|
|
{
|
|
uint16_t tempRPM = 0;
|
|
if (currentStatus.hasSync == true)
|
|
{
|
|
if ( currentStatus.RPM < (unsigned int)(configPage4.crankRPM * 100) )
|
|
{
|
|
// Kein Unterschied mit dieser Option
|
|
int tempToothAngle;
|
|
unsigned long toothTime;
|
|
if ( (toothLastToothTime == 0) || (toothLastMinusOneToothTime == 0) ) { tempRPM = 0; }
|
|
else
|
|
{
|
|
noInterrupts();
|
|
tempToothAngle = triggerToothAngle;
|
|
/* High-res mode
|
|
if(toothCurrentCount == 1) { tempToothAngle = 129; }
|
|
else { tempToothAngle = toothAngles[toothCurrentCount-1] - toothAngles[toothCurrentCount-2]; }
|
|
*/
|
|
revolutionTime = (toothOneTime - toothOneMinusOneTime); //The time in uS that one revolution would take at current speed (The time tooth 1 was last seen, minus the time it was seen prior to that)
|
|
toothTime = (toothLastToothTime - toothLastMinusOneToothTime); //Note that trigger tooth angle changes between 129 and 332 depending on the last tooth that was seen
|
|
interrupts();
|
|
toothTime = toothTime * 36;
|
|
tempRPM = ((unsigned long)tempToothAngle * 6000000UL) / toothTime;
|
|
}
|
|
}
|
|
else {
|
|
tempRPM = stdGetRPM(360);
|
|
}
|
|
}
|
|
return tempRPM;
|
|
}
|
|
|
|
|
|
int getCrankAngle_Harley()
|
|
{
|
|
//This is the current angle ATDC the engine is at. This is the last known position based on what tooth was last 'seen'. It is only accurate to the resolution of the trigger wheel (Eg 36-1 is 10 degrees)
|
|
unsigned long tempToothLastToothTime;
|
|
int tempToothCurrentCount;
|
|
//Grab some variables that are used in the trigger code and assign them to temp variables.
|
|
noInterrupts();
|
|
tempToothCurrentCount = toothCurrentCount;
|
|
tempToothLastToothTime = toothLastToothTime;
|
|
lastCrankAngleCalc = micros(); //micros() is no longer interrupt safe
|
|
interrupts();
|
|
|
|
//Check if the last tooth seen was the reference tooth (Number 3). All others can be calculated, but tooth 3 has a unique angle
|
|
int crankAngle;
|
|
if ( (tempToothCurrentCount == 1) || (tempToothCurrentCount == 3) )
|
|
{
|
|
crankAngle = 0 + configPage4.triggerAngle; //Number of teeth that have passed since tooth 1, multiplied by the angle each tooth represents, plus the angle that tooth 1 is ATDC. This gives accuracy only to the nearest tooth.
|
|
}
|
|
else {
|
|
crankAngle = 157 + configPage4.triggerAngle;
|
|
}
|
|
|
|
//Estimate the number of degrees travelled since the last tooth}
|
|
elapsedTime = (lastCrankAngleCalc - tempToothLastToothTime);
|
|
crankAngle += timeToAngle(elapsedTime, CRANKMATH_METHOD_INTERVAL_REV);
|
|
|
|
if (crankAngle >= 720) { crankAngle -= 720; }
|
|
if (crankAngle > CRANK_ANGLE_MAX) { crankAngle -= CRANK_ANGLE_MAX; }
|
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if (crankAngle < 0) { crankAngle += 360; }
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return crankAngle;
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}
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void triggerSetEndTeeth_Harley()
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{
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lastToothCalcAdvance = currentStatus.advance;
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}
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//************************************************************************************************************************
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/*
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Name: 36-2-2-2 trigger wheel wheel
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Desc: A crank based trigger with a nominal 36 teeth, but 6 of these removed in 3 groups of 2. 2 of these groups are located concurrently.
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Note: www.thefactoryfiveforum.com/attachment.php?attachmentid=34279&d=1412431418
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*/
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void triggerSetup_ThirtySixMinus222()
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{
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triggerToothAngle = 10; //The number of degrees that passes from tooth to tooth
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triggerActualTeeth = 30; //The number of physical teeth on the wheel. Doing this here saves us a calculation each time in the interrupt
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triggerFilterTime = (int)(1000000 / (MAX_RPM / 60 * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be disgarded as noise
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secondDerivEnabled = false;
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decoderIsSequential = false;
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checkSyncToothCount = (configPage4.triggerTeeth) >> 1; //50% of the total teeth.
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toothLastMinusOneToothTime = 0;
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toothCurrentCount = 0;
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toothOneTime = 0;
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toothOneMinusOneTime = 0;
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MAX_STALL_TIME = (3333UL * triggerToothAngle * 2 ); //Minimum 50rpm. (3333uS is the time per degree at 50rpm)
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}
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void triggerPri_ThirtySixMinus222()
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|
{
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curTime = micros();
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curGap = curTime - toothLastToothTime;
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if ( curGap >= triggerFilterTime ) //Pulses should never be less than triggerFilterTime, so if they are it means a false trigger. (A 36-1 wheel at 8000pm will have triggers approx. every 200uS)
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{
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|
toothCurrentCount++; //Increment the tooth counter
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|
validTrigger = true; //Flag this pulse as being a valid trigger (ie that it passed filters)
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|
|
|
//Begin the missing tooth detection
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|
//If the time between the current tooth and the last is greater than 2x the time between the last tooth and the tooth before that, we make the assertion that we must be at the first tooth after a gap
|
|
//toothSystemCount is used to keep track of which missed tooth we're on. It will be set to 1 if that last tooth seen was the middle one in the -2-2 area. At all other times it will be 0
|
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if(toothSystemCount == 0) { targetGap = ((toothLastToothTime - toothLastMinusOneToothTime)) * 2; } //Multiply by 2 (Checks for a gap 2x greater than the last one)
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|
|
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if( (toothLastToothTime == 0) || (toothLastMinusOneToothTime == 0) ) { curGap = 0; }
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|
|
|
if ( (curGap > targetGap) )
|
|
{
|
|
{
|
|
if(toothSystemCount == 1)
|
|
{
|
|
//This occurs when where at the first tooth after the 2 lots of 2x missing tooth.
|
|
toothCurrentCount = 19;
|
|
toothSystemCount = 0;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
else
|
|
{
|
|
//We've seen a missing tooth set, but do not yet know whether it is the single one or the double one.
|
|
toothSystemCount = 1;
|
|
toothCurrentCount++;
|
|
toothCurrentCount++; //Accurately reflect the actual tooth count, including the skipped ones
|
|
}
|
|
triggerToothAngleIsCorrect = false; //The tooth angle is double at this point
|
|
triggerFilterTime = 0; //This is used to prevent a condition where serious intermitent signals (Eg someone furiously plugging the sensor wire in and out) can leave the filter in an unrecoverable state
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(toothCurrentCount > 36)
|
|
{
|
|
//Means a complete rotation has occured.
|
|
toothCurrentCount = 1;
|
|
revolutionOne = !revolutionOne; //Flip sequential revolution tracker
|
|
toothOneMinusOneTime = toothOneTime;
|
|
toothOneTime = curTime;
|
|
currentStatus.startRevolutions++; //Counter
|
|
|
|
}
|
|
else if(toothSystemCount == 1)
|
|
{
|
|
//This occurs when a set of missing teeth had been seen, but the next one was NOT missing.
|
|
toothCurrentCount = 35;
|
|
currentStatus.hasSync = true;
|
|
}
|
|
|
|
//Filter can only be recalc'd for the regular teeth, not the missing one.
|
|
setFilter(curGap);
|
|
|
|
triggerToothAngleIsCorrect = true;
|
|
toothSystemCount = 0;
|
|
}
|
|
|
|
toothLastMinusOneToothTime = toothLastToothTime;
|
|
toothLastToothTime = curTime;
|
|
|
|
//EXPERIMENTAL!
|
|
if(configPage2.perToothIgn == true)
|
|
{
|
|
uint16_t crankAngle = ( (toothCurrentCount-1) * triggerToothAngle ) + configPage4.triggerAngle;
|
|
checkPerToothTiming(crankAngle, toothCurrentCount);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
void triggerSec_ThirtySixMinus222()
|
|
{
|
|
//NOT USED - This pattern uses the missing tooth version of this function
|
|
}
|
|
|
|
int getCrankAngle_ThirtySixMinus222()
|
|
{
|
|
//NOT USED - This pattern uses the missing tooth version of this function
|
|
return 0;
|
|
}
|
|
|
|
void triggerSetEndTeeth_ThirtySixMinus222()
|
|
{
|
|
if(currentStatus.advance < 10) { ignition1EndTooth = 36; }
|
|
else if(currentStatus.advance < 20) { ignition1EndTooth = 35; }
|
|
else if(currentStatus.advance < 30) { ignition1EndTooth = 34; }
|
|
else { ignition1EndTooth = 31; }
|
|
|
|
if(currentStatus.advance < 30) { ignition2EndTooth = 16; }
|
|
else { ignition2EndTooth = 13; }
|
|
|
|
lastToothCalcAdvance = currentStatus.advance;
|
|
}
|