E-gas-monitoring-concept-V5.5

StandardizedE-GasMonitoringConceptforGasolineandDieselEngineControlUnitsVersion5.5StandardizedE-GASMonitoringConceptforGasolineandDieselEngineControlUnitsEGASWorkgroup_en/2013-07-05/Version5.5Page21GeneralPart..............................................................................................................................................41.1ParticipantsintheWorkingGroup...................................................................................................42Introduction..............................................................................................................................................43DefinitionofTerms..................................................................................................................................44Abbreviations...........................................................................................................................................65DevelopingGuidelinesandBasicPrinciples........................................................................................76Amendments/References......................................................................................................................77SystemDefinition.....................................................................................................................................88HazardAnalysisandRiskAssessment.................................................................................................99FunctionalSafetyConcept....................................................................................................................1010TechnicalSafetyConcept.....................................................................................................................1310.13-LevelMonitoringConcept............................................................................................................1310.1.1SystemOverviewElectronicControlUnit(ECU).............................................................................1310.1.2ECUFunctionsandComponentMonitoringofLevel1....................................................................1410.1.2.1CharacteristicandDiagnosticRequirementsoftheThrottle-ValveActuator....................................1610.1.2.1.1CharacteristicoftheThrottle-ValveSensorTechnology............................................................1610.1.2.1.2FaultDetection............................................................................................................................1610.1.2.2DesignCharacteristicsandDiagnosticRequirementsofthePedalValueSensor...........................1710.1.2.2.1DesignCharacteristicsofthePedalValueSensors...................................................................1710.1.2.2.2DesignCharacteristicoftheECUInputWiring(AnalogSensor)................................................1710.1.2.2.3DesignCharacteristicoftheSignalContentwithDigitalCommunicationProtocol(e.g.SENT)1710.1.2.2.4DesignCharacteristicsoftheECUforEvaluationoftheDigitalTransmissionProtocol(e.g.SENT)....................................................................................................................................................1710.1.2.2.5FaultDetection............................................................................................................................1710.1.2.3DeterminationoftheRequiredPedalValueofLevel1inNormalOperation..............................1810.1.2.4AcceleratorPedal/BrakePlausibility...............................................................................................1810.1.3GeneralRequirementsofLevel2FunctionMonitoring....................................................................1910.1.3.1Inclusionofthetorquelossoflevel1for“permissibletorque”calculation........................................2510.1.3.2TakingoverAdaptationValues/CorrectionFactorsfromLevel1toLevel2(Tolerancelimitation)2510.1.3.3MonitoringoftheInjectionOutputVariablesfromLevel1................................................................26StandardizedE-GASMonitoringConceptforGasolineandDieselEngineControlUnitsEGASWorkgroup_en/2013-07-05/Version5.5Page310.1.3.4MonitoringoftheTriggerOutputUnit(e.g.TPU,PCP).....................................................................2610.1.3.5ContinuousTorqueMonitoringDiesel(TorqueComparison),ReverseCalculationofCurrentTorqueLevel2..................................................................................................................................2610.1.3.5.1RailPressureMonitoring.............................................................................................................2610.1.3.5.2TorqueRelevantEfficienciesofInjectionQuantities..................................................................2710.1.3.5.3MoreTorqueRelevantEfficiencies(e.g.AirInfluence)...............................................................2710.1.3.6ContinuousDieselMonitoring(AccelerationComparison).......................