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Implement Cranking to Running Adv.Angle Interpolation for faster start (#506) 

* Implement Cranking to Running Adv.Angle Interpolation for faster start

* Reduce code dup. and rename minRpm

* fix
This commit is contained in:
andreika-git 2017-12-03 20:25:24 +02:00 committed by rusefi
parent d99690d3a2
commit 12aff34939
1 changed files with 9 additions and 1 deletions
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10
firmware/controllers/algo/advance_map.cpp
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@ -33,6 +33,8 @@ extern TunerStudioOutputChannels tsOutputChannels;
static ign_Map3D_t advanceMap("advance");
static ign_Map3D_t iatAdvanceCorrectionMap("iat corr");
static int minCrankingRpm = 0;
static const float iatTimingRpmBins[IGN_LOAD_COUNT] = {880, 1260, 1640, 2020, 2400, 2780, 3000, 3380, 3760, 4140, 4520, 5000, 5700, 6500, 7200, 8000};
//880 1260 1640 2020 2400 2780 3000 3380 3760 4140 4520 5000 5700 6500 7200 8000
@ -65,6 +67,7 @@ bool isStep1Condition(int rpm DECLARE_ENGINE_PARAMETER_SUFFIX) {
static angle_t getRunningAdvance(int rpm, float engineLoad DECLARE_ENGINE_PARAMETER_SUFFIX) {
if (CONFIG(timingMode) == TM_FIXED)
return engineConfiguration->fixedTiming;
engine->m.beforeAdvance = GET_TIMESTAMP();
if (cisnan(engineLoad)) {
warning(CUSTOM_NAN_ENGINE_LOAD, "NaN engine load");
@ -106,7 +109,12 @@ static angle_t getRunningAdvance(int rpm, float engineLoad DECLARE_ENGINE_PARAME
angle_t getAdvance(int rpm, float engineLoad DECLARE_ENGINE_PARAMETER_SUFFIX) {
angle_t angle;
if (ENGINE(rpmCalculator).isCranking(PASS_ENGINE_PARAMETER_SIGNATURE)) {
angle = engineConfiguration->crankingTimingAngle;
// Interpolate the cranking timing angle to the earlier running angle for faster engine start
angle_t crankingToRunningTransitionAngle = getRunningAdvance(CONFIG(cranking.rpm), engineLoad PASS_ENGINE_PARAMETER_SUFFIX);
// interpolate not from zero, but starting from min. possible rpm detected
if (rpm < minCrankingRpm || minCrankingRpm == 0)
minCrankingRpm = rpm;
angle = interpolateClamped(minCrankingRpm, engineConfiguration->crankingTimingAngle, CONFIG(cranking.rpm), crankingToRunningTransitionAngle, rpm);
} else {
angle = getRunningAdvance(rpm, engineLoad PASS_ENGINE_PARAMETER_SUFFIX);
}