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Prime Injection Pulse impl. (#516) 

* Prime Injection Pulse impl.

* Move backup_ram into a separate PR

* fix formatting
This commit is contained in:
andreika-git 2017-12-23 21:15:35 +02:00 committed by rusefi
parent 812efe9b93
commit 7571643e74
3 changed files with 55 additions and 0 deletions
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2
firmware/controllers/engine_controller.cpp
View File

@ -262,6 +262,8 @@ static void periodicSlowCallback(Engine *engine) {
writeToFlashIfPending();
#endif
resetAccel();
} else {
updatePrimeInjectionPulseState(PASS_ENGINE_PARAMETER_SIGNATURE);
}
if (versionForConfigurationListeners.isOld()) {

49
firmware/controllers/trigger/main_trigger_callback.cpp
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@ -59,6 +59,7 @@
#include "engine.h"
#include "efilib2.h"
#include "aux_valves.h"
#include "backup_ram.h"
EXTERN_ENGINE
;
@ -66,6 +67,8 @@ extern bool hasFirmwareErrorFlag;
static const char *prevOutputName = NULL;
static InjectionEvent primeInjEvent;
static Logging *logger;
#if ! EFI_UNIT_TEST
static pid_s *fuelPidS = &persistentState.persistentConfiguration.engineConfiguration.fuelClosedLoopPid;
@ -512,6 +515,47 @@ void mainTriggerCallback(trigger_event_e ckpSignalType, uint32_t trgEventIndex D
}
}
// Prime injection pulse, mainly needed for mono-injectors or long intake manifolds.
static void startPrimeInjectionPulse(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
#if EFI_PROD_CODE || defined(__DOXYGEN__)
// First, we need a protection against 'fake' ignition switch on and off (i.e. no engine started), to avoid repeated prime pulses.
// So we check and update the ignition switch counter in non-volatile backup-RAM
uint32_t ignSwitchCounter = backupRamLoad(BACKUP_IGNITION_SWITCH_COUNTER);
// if we're just toying with the ignition switch, give it another chance eventually...
if (ignSwitchCounter > 10)
ignSwitchCounter = 0;
// start prime injection if this is a 'fresh start'
if (ignSwitchCounter == 0) {
// fill-in the prime event struct
#if EFI_UNIT_TEST || defined(__DOXYGEN__)
primeInjEvent.engine = engine;
#endif
primeInjEvent.ownIndex = 0;
primeInjEvent.isSimultanious = true;
scheduling_s *sDown = &ENGINE(fuelActuators[0]).signalTimerDown;
startSimultaniousInjection(&primeInjEvent);
efitimeus_t turnOffTime = getTimeNowUs() + MS2US(CONFIG(startOfCrankingPrimingPulse));
scheduleTask(sDown, turnOffTime, (schfunc_t) &endSimultaniousInjection, &primeInjEvent);
}
// we'll reset it later when the engine starts
backupRamSave(BACKUP_IGNITION_SWITCH_COUNTER, ignSwitchCounter + 1);
#endif /* EFI_PROD_CODE */
}
void updatePrimeInjectionPulseState(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
#if EFI_PROD_CODE || defined(__DOXYGEN__)
static bool counterWasReset = false;
if (counterWasReset)
return;
if (!engine->rpmCalculator.isStopped(PASS_ENGINE_PARAMETER_SIGNATURE)) {
backupRamSave(BACKUP_IGNITION_SWITCH_COUNTER, 0);
counterWasReset = true;
}
#endif /* EFI_PROD_CODE */
}
#if EFI_ENGINE_SNIFFER || defined(__DOXYGEN__)
#include "engine_sniffer.h"
#endif
@ -554,6 +598,11 @@ void initMainEventListener(Logging *sharedLogger DECLARE_ENGINE_PARAMETER_SUFFIX
#endif /* EFI_HISTOGRAMS */
addTriggerEventListener(mainTriggerCallback, "main loop", engine);
// We start prime injection pulse at the early init stage - don't wait for the engine to start spinning!
if (CONFIG(startOfCrankingPrimingPulse) > 0)
startPrimeInjectionPulse(PASS_ENGINE_PARAMETER_SIGNATURE);
}
#endif /* EFI_ENGINE_CONTROL */

4
firmware/controllers/trigger/main_trigger_callback.h
View File

@ -26,4 +26,8 @@ void seTurnPinHigh(InjectionSignalPair *pair);
void seTurnPinLow(InjectionSignalPair *pair);
float getFuel(int rpm, float key);
// reset injection switch counter if the engine started spinning
void updatePrimeInjectionPulseState(DECLARE_ENGINE_PARAMETER_SIGNATURE);
#endif /* MAIN_LOOP_H_ */