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magic constants

This commit is contained in:
rusefi 2020-08-31 22:22:45 -04:00
parent db9ea3b3e3
commit 5d3614350c
2 changed files with 15 additions and 12 deletions
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26
firmware/controllers/can/obd2.cpp
View File

@ -78,6 +78,8 @@ static void obdSendPacket(int mode, int PID, int numBytes, uint32_t iValue) {
}
}
#define _1_MODE 1
static void obdSendValue(int mode, int PID, int numBytes, float value) {
efiAssertVoid(CUSTOM_ERR_6662, numBytes <= 2, "invalid numBytes");
int iValue = (int)efiRound(value, 1.0f);
@ -120,40 +122,40 @@ static void handleGetDataRequest(const CANRxFrame& rx) {
break;
case PID_FUEL_SYSTEM_STATUS:
// todo: add statuses
obdSendValue(1, pid, 2, (2<<8)|(0)); // 2 = "Closed loop, using oxygen sensor feedback to determine fuel mix"
obdSendValue(_1_MODE, pid, 2, (2<<8)|(0)); // 2 = "Closed loop, using oxygen sensor feedback to determine fuel mix"
break;
case PID_ENGINE_LOAD:
obdSendValue(1, pid, 1, getFuelingLoad(PASS_ENGINE_PARAMETER_SIGNATURE) * 2.55f);
obdSendValue(_1_MODE, pid, 1, getFuelingLoad(PASS_ENGINE_PARAMETER_SIGNATURE) * 2.55f);
break;
case PID_COOLANT_TEMP:
obdSendValue(1, pid, 1, Sensor::get(SensorType::Clt).value_or(0) + 40.0f);
obdSendValue(_1_MODE, pid, 1, Sensor::get(SensorType::Clt).value_or(0) + 40.0f);
break;
case PID_STFT_BANK1:
obdSendValue(1, pid, 1, 128 * ENGINE(engineState.running.pidCorrection));
obdSendValue(_1_MODE, pid, 1, 128 * ENGINE(engineState.running.pidCorrection));
break;
case PID_INTAKE_MAP:
obdSendValue(1, pid, 1, getMap(PASS_ENGINE_PARAMETER_SIGNATURE));
obdSendValue(_1_MODE, pid, 1, getMap(PASS_ENGINE_PARAMETER_SIGNATURE));
break;
case PID_RPM:
obdSendValue(1, pid, 2, GET_RPM() * 4.0f); // rotation/min. (A*256+B)/4
obdSendValue(_1_MODE, pid, 2, GET_RPM() * ODB_RPM_MULT); // rotation/min. (A*256+B)/4
break;
case PID_SPEED:
obdSendValue(1, pid, 1, getVehicleSpeed());
obdSendValue(_1_MODE, pid, 1, getVehicleSpeed());
break;
case PID_TIMING_ADVANCE: {
float timing = engine->engineState.timingAdvance;
timing = (timing > 360.0f) ? (timing - 720.0f) : timing;
obdSendValue(1, pid, 1, (timing + 64.0f) * 2.0f); // angle before TDC. (A/2)-64
obdSendValue(_1_MODE, pid, 1, (timing + 64.0f) * 2.0f); // angle before TDC. (A/2)-64
break;
}
case PID_INTAKE_TEMP:
obdSendValue(1, pid, 1, Sensor::get(SensorType::Iat).value_or(0) + 40.0f);
obdSendValue(_1_MODE, pid, 1, Sensor::get(SensorType::Iat).value_or(0) + 40.0f);
break;
case PID_INTAKE_MAF:
obdSendValue(1, pid, 2, getRealMaf(PASS_ENGINE_PARAMETER_SIGNATURE) * 100.0f); // grams/sec (A*256+B)/100
obdSendValue(_1_MODE, pid, 2, getRealMaf(PASS_ENGINE_PARAMETER_SIGNATURE) * 100.0f); // grams/sec (A*256+B)/100
break;
case PID_THROTTLE:
obdSendValue(1, pid, 1, Sensor::get(SensorType::Tps1).value_or(0) * 2.55f); // (A*100/255)
obdSendValue(_1_MODE, pid, 1, Sensor::get(SensorType::Tps1).value_or(0) * 2.55f); // (A*100/255)
break;
case PID_FUEL_AIR_RATIO_1: {
float afr = getAfr(PASS_ENGINE_PARAMETER_SIGNATURE);
@ -165,7 +167,7 @@ static void handleGetDataRequest(const CANRxFrame& rx) {
obdSendPacket(1, pid, 4, scaled << 16);
break;
} case PID_FUEL_RATE:
obdSendValue(1, pid, 2, engine->engineState.fuelConsumption.perSecondConsumption * 20.0f); // L/h. (A*256+B)/20
obdSendValue(_1_MODE, pid, 2, engine->engineState.fuelConsumption.perSecondConsumption * 20.0f); // L/h. (A*256+B)/20
break;
default:
// ignore unhandled PIDs

1
firmware/controllers/can/obd2.h
View File

@ -43,3 +43,4 @@
void obdOnCanPacketRx(const CANRxFrame& rx);
#endif /* HAL_USE_CAN */
#define ODB_RPM_MULT 4.0f