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Added some testing code and fixed some minor issues (req_fuel must be float)

This commit is contained in:
Josh Stewart 2013-02-05 22:31:17 +11:00
parent 90d2594825
commit 439a936d87
2 changed files with 28 additions and 15 deletions
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18
kartduino.ino
View File

@ -23,7 +23,7 @@ Need to calculate the req_fuel figure here, preferably in pre-processor macro
#include "table.h"
#include "testing.h"
int req_fuel = ((engineCapacity / engineInjectorSize) / engineCylinders / engineStoich) * 100; // This doesn't seem quite correct, but I can't find why. It will be close enough to start an engine
float req_fuel = ((engineCapacity / engineInjectorSize) / engineCylinders / engineStoich) * 100; // This doesn't seem quite correct, but I can't find why. It will be close enough to start an engine
@ -69,7 +69,7 @@ void setup() {
req_fuel = req_fuel / engineSquirtsPerCycle; //The req_fuel calculation above gives the total required fuel (At VE 100%) in the full cycle. If we're doing more than 1 squirt per cycle then we need to split the amount accordingly. (Note that in a non-sequential 4-stroke setup you cannot have less than 2 squirts as you cannot determine the stroke to make the single squirt on)
Serial.begin(9600);
@ -90,7 +90,7 @@ void loop()
}
//Get the current MAP value
int MAP = 1; //Placeholder
int MAP = 50; //Placeholder
//Perform lookup into fuel map for RPM vs MAP value
int VE = getTableValue(fuelTable, rpm, MAP);
@ -102,13 +102,25 @@ void loop()
}
else
{ getSync(); }
Serial.print("Time");
Serial.println(micros());
Serial.println(toothLastToothTime);
Serial.println(toothLastMinusOneToothTime);
Serial.println(rpm);
delay(100);
}
//The get Sync function attempts to wait
void getSync()
{
//The are some placeholder values so we can get a fake RPM
toothLastMinusOneToothTime = micros();
delay(1); //A 1000us delay should make for about a 5000rpm test speed with a 12 tooth wheel(60000000us / (1000us * triggerTeeth)
toothLastToothTime = micros();
hasSync = true;
}

25
testing.h
View File

@ -4,19 +4,20 @@ This file has a few functions that are helpful for testing such as creating dumm
/*
Aim is to create an 8x8 table that looks like the below:
VE
_____________________________________________
|100| | | | | | | | 90 |
| 88|
| 75|
| 63|
| 50|
| 38|
| 25| 17 | 21 |
| 13| 15 | 20 |
| | 500|1500|2000|2500|3000|4000|5000|6000| RPM
MAP
______________________________________________
|100|| 78 | 88 | 92 | 95 | 97 |101 |107 |110 |
| 88|| 58 |
| 75|| 45 |
| 63|| 35 |
| 50|| 28 | 30
| 38|| 22 | 23 |
| 25|| 17 | 21 |
| 13|| 15 | 20 | 25 |
| || 500|1500|2000|2500|3000|4000|5000|6000| RPM
This is a fairly standard 8x8 VE vs RPM 2D map
This is a fairly realistic 8x8 VE vs RPM 2D map
Here is a run through of how the interpolation would flow:
Pass in:
x = 1000
y = 20