stub config for lambda protection #75

firmware/controllers/can/can_verbose.cpp

@@ -27,8 +27,8 @@ struct Status {
 	uint8_t fuelPump : 1;
 	uint8_t checkEngine : 1;
 	uint8_t o2Heater : 1;
+	uint8_t lambdaProtectActive : 1;
 
-	uint8_t pad6 : 1;
 	uint8_t pad7 : 1;
 	uint8_t pad8 : 1;
 
@@ -47,6 +47,9 @@ static void populateFrame(Status& msg) {
 	msg.checkEngine = enginePins.checkEnginePin.getLogicValue();
 	msg.o2Heater = enginePins.o2heater.getLogicValue();
 
+	// TODO: https://github.com/FOME-Tech/fome-fw/issues/75
+	msg.lambdaProtectActive = false;
+
 	msg.gear = Sensor::getOrZero(SensorType::DetectedGear);
 }
 

firmware/controllers/can/rusEFI_CAN_verbose.dbc

@@ -54,6 +54,7 @@ BO_ 512 BASE0: 8 Vector__XXX
  SG_ FuelPumpAct : 34|1@1+ (1,0) [0|0] "" Vector__XXX
  SG_ CELAct : 35|1@1+ (1,0) [0|0] "" Vector__XXX
  SG_ EGOHeatAct : 36|1@1+ (1,0) [0|0] "" Vector__XXX
+ SG_ LambdaProtectAct : 37|1@1+ (1,0) [0|0] "" Vector__XXX
  SG_ CurrentGear : 40|8@1+ (1,0) [0|0] "" Vector__XXX
 
 BO_ 513 BASE1: 8 Vector__XXX
@@ -123,6 +124,7 @@ CM_ SG_ 512 MainRelayAct "Main Relay Active";
 CM_ SG_ 512 FuelPumpAct "Fuel Pump Output Active";
 CM_ SG_ 512 CELAct "Check Engine Light Active";
 CM_ SG_ 512 EGOHeatAct "EGO Heater Commanded On";
+CM_ SG_ 512 LambdaProtectAct "Lambda protection active (fault detected)";
 CM_ SG_ 512 CurrentGear "Current detected gear. 0 means neutral, 1 means first, etc.";
 CM_ SG_ 513 RPM "Current RPM";
 CM_ SG_ 513 IgnitionTiming "Current Ignition Timing. Positive is advance.";

firmware/integration/rusefi_config.txt

@@ -406,7 +406,7 @@ injector_s injector
 
 bit isForcedInduction;Does the vehicle have a turbo or supercharger?
 bit useFordRedundantTps;On some Ford and Toyota vehicles one of the throttle sensors is not linear on the full range, i.e. in the specific range of the positions we effectively have only one sensor.
-bit unused88b2
+bit lambdaProtectionEnable
 bit overrideTriggerGaps
 bit enableFan1WithAc;Turn on this fan when AC is on.
 bit enableFan2WithAc;Turn on this fan when AC is on.
@@ -687,7 +687,8 @@ pin_input_mode_e throttlePedalUpPinMode;
 
 	uint16_t autoscale fordInjectorSmallPulseSlope;;"g/s", 0.001, 0, 0, 65, 3
 
-	uint8_t[2] unused638
+	uint8_t autoscale lambdaProtectionMinRpm;;"RPM", 100, 0, 0, 25000, 0
+	uint8_t autoscale lambdaProtectionMinLoad;;"", 10, 0, 0, 1000, 0
 
 bit is_enabled_spi_1
 bit is_enabled_spi_2
@@ -775,7 +776,10 @@ custom uart_device_e 1 bits, U08, @OFFSET@, [0:1], "Off", "UART1", "UART2", "UAR
 	int16_t antiLagRpmTreshold;;"rpm", 1, 0, 0, 20000, 0
 	uint16_t startCrankingDuration;Maximum time to crank starter when start/stop button is pressed;"Seconds", 1, 0, 0, 30, 0
 
-	uint8_t[3] unused748
+	uint8_t autoscale lambdaProtectionMinTps;;"", 1, 0, 0, 100, 0
+	uint8_t autoscale lambdaProtectionTimeout;Only respond once lambda is out of range for this period of time. Use to avoid transients triggering lambda protection when not needed;"s", 0.1, 0, 0, 10, 1
+
+	uint8_t unused748
 
 	pin_output_mode_e acRelayPinMode;
 	output_pin_e acRelayPin;
@@ -1702,6 +1706,10 @@ uint16_t[12] autoscale throttleEstimateEffectiveAreaValues;In units of g/s norma
 blend_table_s[BOOST_BLEND_COUNT iterate] boostOpenLoopBlends
 blend_table_s[BOOST_BLEND_COUNT iterate] boostClosedLoopBlends
 
+uint8_t[4 x 4] autoscale lambdaMaxDeviationTable;;"lambda", 0.01, 0, 0, 1, 2
+uint16_t[4] lambdaMaxDeviationLoadBins;;"", 1, 0, 0, 1000, 0
+uint16_t[4] lambdaMaxDeviationRpmBins;;"RPM",  1, 0, 0, 18000, 0
+
 end_struct
 
 ! Pedal Position Sensor

firmware/tunerstudio/rusefi.input

@@ -1156,6 +1156,12 @@ curve = 32Curve, "3-2 Shift Solenoid Percent by Speed"
 		gridOrient  = 250,	0, 340 ; Space 123 rotation of grid in degrees.
 		upDownLabel = "(RICHER)", "(LEANER)"
 
+	table = lambdaMaxDeviationTableTbl, lambdaMaxDeviationTableMap, "Maximum Lambda Deviation Table", 1
+		xyLabels = "RPM", ""
+		xBins = lambdaMaxDeviationRpmBins, RPMValue
+		yBins = lambdaMaxDeviationLoadBins, afrTableYAxis
+		zBins = lambdaMaxDeviationTable
+
 	table = iacPidMultTbl,  iacPidMultMap,  "IAC PID Multiplier Table",	1
 		;		constant, variable
 		xBins		= iacPidMultRpmBins,  RPMValue
@@ -1898,6 +1904,11 @@ menuDialog = main
 
 		subMenu = softwareKnock,			"Software knock" @@if_ts_show_software_knock
 		subMenu = maxKnockRetardTbl,		"Max knock retard" @@if_ts_show_software_knock
+
+		; TODO: move lambdaProtection to the fuel menu once ready
+		; https://github.com/FOME-Tech/fome-fw/issues/75
+		subMenu = lambdaProtection,			"Lambda Protection", 0, { isInjectionEnabled }
+
 		subMenu = std_separator
 
 		subMenu = std_separator
@@ -3437,6 +3448,20 @@ cmd_set_engine_type_default					= "@@TS_IO_TEST_COMMAND_char@@@@ts_command_e_TS_
 		panel = stftPartitionSettingsPower, {fuelClosedLoopCorrectionEnabled == 1}
 		panel = stftPartitionSettingsOverrun, {fuelClosedLoopCorrectionEnabled == 1}
 
+	dialog = lambdaProtectionLeft, ""
+		field = "Enable lambda protection", lambdaProtectionEnable
+		field = "Check above load", lambdaProtectionMinLoad, { lambdaProtectionEnable }
+		field = "Check above TPS", lambdaProtectionMinTps, { lambdaProtectionEnable }
+		field = "Check above RPM", lambdaProtectionMinRpm, { lambdaProtectionEnable }
+		field = "Check after delay", lambdaProtectionTimeout { lambdaProtectionEnable }
+
+	dialog = lambdaProtectionRight, "Lambda Difference Limit Table"
+		panel = lambdaMaxDeviationTableTbl
+
+	dialog = lambdaProtection, "Lambda Protection", border
+		panel = lambdaProtectionLeft, West
+		panel = lambdaProtectionRight, East
+
 	dialog = vvtPidDialog0, "Configuration"
 		field = "Activation Delay",						vvtActivationDelayMs
 		field = "Do not control below RPM",				vvtControlMinRpm