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Prep for ignition charging

This commit is contained in:
Josh Stewart 2013-02-14 17:47:49 +11:00
parent 1537249958
commit f8ccd8ac6d
2 changed files with 13 additions and 4 deletions
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14
kartduino.ino
View File

@ -14,7 +14,7 @@ Need to calculate the req_fuel figure here, preferably in pre-processor macro
#define engineDwell 3000 //The spark dwell time in uS
#define triggerTeeth 12 //The full count of teeth on the trigger wheel if there were no gaps
#define triggerMissingTeeth 1 //The size of the tooth gap (ie number of missing teeth)
#define triggerAngle 110 // The angle (Degrees) from TDC that No 1 cylinder is at when tooth #1 passes the sensor
#define triggerAngle 110 // The angle (Degrees) from TDC that No 1 cylinder is at when tooth #1 passes the sensor. CANNOT BE 0
//The following lines are configurable, but the defaults are probably pretty good for most applications
#define engineInjectorDeadTime 1.5 //Time in ms that the injector takes to open
@ -37,7 +37,8 @@ int req_fuel_uS = req_fuel * 1000; //Convert to uS and, importantly, an int. Thi
int triggerActualTeeth = triggerTeeth - triggerMissingTeeth; //The number of physical teeth on the wheel. Doing this here saves us a calculation each time in the interrupt
int triggerOffset = 120;
int triggerToothAngle = 360 / triggerTeeth; //The number of degrees that passes from tooth to tooth
int pinInjector = 6; // The standard pin for the injector driver
int pinInjector = 6; // The standard pin for the injector driver (Assumes 1 cyl only)
int pinCoil = 7; //Pin for the coil (AS above, 1 cyl only)
int pinTrigger = 2;
volatile boolean hasSync = false;
@ -123,6 +124,8 @@ void loop()
//Finally calculate the time (uS) until we reach the firing angles
unsigned long timePerDegree = (toothLastToothTime - toothLastMinusOneToothTime) / triggerToothAngle; //The time (uS) it is currently taking to move 1 degree
//Serial.println(VE);
@ -135,6 +138,7 @@ void loop()
//Serial.println( (float)(req_fuel * (float)(VE/100)) );
//Serial.println( (float)(VE/100.0));
/*
if (counter > 100000) {
scheduleStart = micros();
setSchedule1(openInjector2, 1000000);
@ -142,11 +146,13 @@ void loop()
}
counter++;
if (scheduleEnd != 0) {
Serial.print("The schedule took (uS): ");
Serial.println(scheduleEnd - scheduleStart);
scheduleEnd = 0;
}
*/
}
else
@ -175,9 +181,11 @@ void getSync()
//Interrupts
//These 2 functions simply trigger the injector driver off or on.
void openInjector2() { scheduleEnd = micros();}
//void openInjector2() { scheduleEnd = micros();}
void openInjector() { digitalWrite(pinInjector, HIGH); } // Set based on an estimate of when to open the injector
void closeInjector() { digitalWrite(pinInjector, LOW); } // Is called x ms after the open time where x is calculated by the rpm, load and req_fuel
void beginCoilCharge() { digitalWrite(pinCoil, HIGH); } // Set based on an estimate of when to begin the charge
void endCoilCharge() { digitalWrite(pinCoil, LOW); } // Is called after the dwell time has passed
//The trigger function is called everytime a crank tooth passes the sensor
void trigger()

3
scheduler.h
View File

@ -53,7 +53,8 @@ void initialiseScheduler()
TCCR4A = 0x00; //Timer2 Control Reg A: Wave Gen Mode normal
TCCR4B = (1 << CS12); //Timer2 Control Reg B: Timer Prescaler set to 256. Refer to http://www.instructables.com/files/orig/F3T/TIKL/H3WSA4V7/F3TTIKLH3WSA4V7.jpg
schedule1Active = 0;
schedule2Active = 0;
}
/*