mirror of https://github.com/rusefi/rusefi-1.git
trailing spark scheduling (#2932)
* enable bit * implement trailing sparks * test trailing spark * it helps to call the correct function * add pins * gobblin ram
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@ -171,6 +171,10 @@ void EngineState::periodicFastCallback(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
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float ignitionLoad = getIgnitionLoad(PASS_ENGINE_PARAMETER_SIGNATURE);
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timingAdvance = getAdvance(rpm, ignitionLoad PASS_ENGINE_PARAMETER_SUFFIX);
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// TODO: calculate me from a table!
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trailingSparkAngle = 10;
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multispark.count = getMultiSparkCount(rpm PASS_ENGINE_PARAMETER_SUFFIX);
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#if EFI_LAUNCH_CONTROL
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@ -47,6 +47,10 @@ public:
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* timing advance is angle distance before Top Dead Center (TDP), i.e. "10 degree timing advance" means "happens 10 degrees before TDC"
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*/
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angle_t timingAdvance = 0;
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// Angle between firing the main (primary) spark and the secondary (trailing) spark
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angle_t trailingSparkAngle = 0;
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// fuel-related;
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float fuelCutoffCorrection = 0;
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efitick_t coastingFuelCutStartTime = 0;
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@ -99,6 +99,9 @@ public:
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scheduling_s dwellStartTimer;
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AngleBasedEvent sparkEvent;
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scheduling_s trailingSparkCharge;
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scheduling_s trailingSparkFire;
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// How many additional sparks should we fire after the first one?
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// For single sparks, this should be zero.
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uint8_t sparksRemaining = 0;
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@ -698,7 +698,7 @@ void initEngineContoller(DECLARE_ENGINE_PARAMETER_SUFFIX) {
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* UNUSED_SIZE constants.
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*/
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#ifndef RAM_UNUSED_SIZE
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#define RAM_UNUSED_SIZE 1400
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#define RAM_UNUSED_SIZE 1000
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#endif
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#ifndef CCM_UNUSED_SIZE
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#define CCM_UNUSED_SIZE 300
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@ -128,6 +128,14 @@ static void prepareCylinderIgnitionSchedule(angle_t dwellAngleDuration, floatms_
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#endif /* FUEL_MATH_EXTREME_LOGGING */
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}
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static void chargeTrailingSpark(IgnitionOutputPin* pin) {
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pin->setValue(1);
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}
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static void fireTrailingSpark(IgnitionOutputPin* pin) {
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pin->setValue(0);
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}
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void fireSparkAndPrepareNextSchedule(IgnitionEvent *event) {
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for (int i = 0; i< MAX_OUTPUTS_FOR_IGNITION;i++) {
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IgnitionOutputPin *output = event->outputs[i];
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@ -186,8 +194,7 @@ if (engineConfiguration->debugMode == DBG_DWELL_METRIC) {
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}
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// If there are more sparks to fire, schedule them
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if (event->sparksRemaining > 0)
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{
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if (event->sparksRemaining > 0) {
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event->sparksRemaining--;
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efitick_t nextDwellStart = nowNt + engine->engineState.multispark.delay;
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@ -196,9 +203,16 @@ if (engineConfiguration->debugMode == DBG_DWELL_METRIC) {
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// We can schedule both of these right away, since we're going for "asap" not "particular angle"
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engine->executor.scheduleByTimestampNt(&event->dwellStartTimer, nextDwellStart, { &turnSparkPinHigh, event });
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engine->executor.scheduleByTimestampNt(&event->sparkEvent.scheduling, nextFiring, { fireSparkAndPrepareNextSchedule, event });
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} else {
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if (CONFIG(enableTrailingSparks)) {
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// Trailing sparks are enabled - schedule an event for the corresponding trailing coil
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scheduleByAngle(
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&event->trailingSparkFire, nowNt, ENGINE(engineState.trailingSparkAngle),
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{ &fireTrailingSpark, &enginePins.trailingCoils[event->cylinderNumber] }
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PASS_ENGINE_PARAMETER_SUFFIX
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);
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}
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else
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{
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// If all events have been scheduled, prepare for next time.
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prepareCylinderIgnitionSchedule(dwellAngleDuration, sparkDwell, event PASS_ENGINE_PARAMETER_SUFFIX);
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}
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@ -269,6 +283,15 @@ void turnSparkPinHigh(IgnitionEvent *event) {
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startDwellByTurningSparkPinHigh(event, output);
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}
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}
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if (CONFIG(enableTrailingSparks)) {
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// Trailing sparks are enabled - schedule an event for the corresponding trailing coil
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scheduleByAngle(
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&event->trailingSparkCharge, nowNt, ENGINE(engineState.trailingSparkAngle),
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{ &chargeTrailingSpark, &enginePins.trailingCoils[event->cylinderNumber] }
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PASS_ENGINE_PARAMETER_SUFFIX
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);
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}
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}
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static bool assertNotInIgnitionList(AngleBasedEvent *head, AngleBasedEvent *element) {
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@ -209,6 +209,7 @@ public:
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InjectorOutputPin injectors[MAX_CYLINDER_COUNT];
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IgnitionOutputPin coils[MAX_CYLINDER_COUNT];
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IgnitionOutputPin trailingCoils[MAX_CYLINDER_COUNT];
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NamedOutputPin auxValve[AUX_DIGITAL_VALVE_COUNT];
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OutputPin tcuSolenoids[TCU_SOLENOID_COUNT];
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@ -541,7 +541,7 @@ bit enableFan1WithAc;+Turn on this fan when AC is on.
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bit enableFan2WithAc;+Turn on this fan when AC is on.
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bit disableFan1WhenStopped;+Inhibit operation of this fan while the engine is not running.
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bit disableFan2WhenStopped;+Inhibit operation of this fan while the engine is not running.
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bit unused_294_8
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bit enableTrailingSparks;+Enable secondary spark outputs that fire after the primary (rotaries, twin plug engines).
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bit isCJ125Verbose;enable cj125verbose/disable cj125verbose
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bit cj125isUaDivided;+Is your UA CJ125 output wired to MCU via resistor divider? Ua can go over 3.3v but only at lambda >3, i.e very lean AFR above 44.1\nWhen exposed to free air and 17x gain, Ua will be 4.17 volt
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bit cj125isLsu49
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@ -8,6 +8,8 @@
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#include "engine_test_helper.h"
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#include "spark_logic.h"
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using ::testing::_;
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TEST(ignition, twoCoils) {
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WITH_ENGINE_TEST_HELPER(BMW_M73_F);
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@ -33,9 +35,65 @@ TEST(ignition, twoCoils) {
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ASSERT_EQ(engine->ignitionEvents.elements[3].sparkAngle, 3 * 720 / 12);
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ASSERT_EQ((void*)engine->ignitionEvents.elements[3].outputs[0], (void*)&enginePins.coils[6]);
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}
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TEST(ignition, trailingSpark) {
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WITH_ENGINE_TEST_HELPER(TEST_ENGINE);
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EXPECT_CALL(eth.mockAirmass, getAirmass(_))
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.WillRepeatedly(Return(AirmassResult{0.1008f, 50.0f}));
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setupSimpleTestEngineWithMafAndTT_ONE_trigger(ð);
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CONFIG(specs.cylindersCount) = 1;
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CONFIG(specs.firingOrder) = FO_1;
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CONFIG(isInjectionEnabled) = false;
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CONFIG(isIgnitionEnabled) = true;
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// Fire trailing spark 10 degrees after main spark
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ENGINE(engineState.trailingSparkAngle) = 10;
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engineConfiguration->injectionMode = IM_SEQUENTIAL;
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eth.fireTriggerEventsWithDuration(20);
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// still no RPM since need to cycles measure cycle duration
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eth.fireTriggerEventsWithDuration(20);
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eth.clearQueue();
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/**
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* Trigger up - scheduling fuel for full engine cycle
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*/
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eth.fireRise(20);
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// Primary coil should be high
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EXPECT_EQ(enginePins.coils[0].getLogicValue(), true);
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EXPECT_EQ(enginePins.trailingCoils[0].getLogicValue(), false);
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// Should be a TDC callback + spark firing
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EXPECT_EQ(engine->executor.size(), 2);
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// execute all actions
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eth.clearQueue();
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// Primary and secondary coils should be low - primary just fired
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EXPECT_EQ(enginePins.coils[0].getLogicValue(), false);
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EXPECT_EQ(enginePins.trailingCoils[0].getLogicValue(), false);
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// Now enable trailing sparks
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CONFIG(enableTrailingSparks) = true;
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// Fire trigger fall - should schedule ignition chargings (rising edges)
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eth.fireFall(20);
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eth.clearQueue();
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// Primary and secondary coils should be low
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EXPECT_EQ(enginePins.coils[0].getLogicValue(), true);
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EXPECT_EQ(enginePins.trailingCoils[0].getLogicValue(), true);
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// Fire trigger rise - should schedule ignition firings
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eth.fireRise(20);
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eth.clearQueue();
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// Primary and secondary coils should be low
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EXPECT_EQ(enginePins.coils[0].getLogicValue(), false);
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EXPECT_EQ(enginePins.trailingCoils[0].getLogicValue(), false);
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}
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