【正版授权-英语版】 ISO/TR 15031-2:2004 EN Road vehicles - Communication between vehicle and external equipment for emissions-related diagnostics - Part 2: Terms,definitions,abbreviations and

ISO/TR15031-2:2004ENRoadvehicles—Communicationbetweenvehicleandexternalequipmentforemissions-relateddiagnostics—Part2:Terms,definitions,abbreviationsandacronymsisaninternationalstandardthatspecifiestheterms,definitions,abbreviationsandacronymsusedinemissions-relateddiagnosticscommunicationbetweenavehicleandexternalequipment.Thisstandardisusedtoensureconsistentandaccuratecommunicationbetweenthesesystems,ensuringthecorrectfunctioningofthevehicle'semissions-relatedsystems.

Inthisstandard,thefollowingterms,definitions,abbreviationsandacronymsarespecified:

***Systems**:Thevehicle'svarioussystemssuchastheengine,exhaustsystem,fuelsystem,etc.

***Diagnosis**:Theprocessofidentifyingandassessingfaultsorproblemswithasystem.

***DTC(DiagnosticTroubleCode)**:Auniquecodethatidentifiesaspecificfaultorproblemwithavehicle'ssystem.

***EVS(Emissions-RelatedSystems)**:Thevehicle'semissions-relatedsystems,includingtheenginecontrolunit(ECU),exhaustgasrecirculation(EGR),etc.

***CAN(ControllerAreaNetwork)**:Acommunicationsprotocolusedinmodernvehiclestotransferdatabetweensystemsandcomponents.

***BMS(BodyManagementSystem)**:Thevehicle'sbodymanagementsystem,whichincludestheinstrumentcluster,infotainmentsystems,etc.

***OBD(On-BoardDiagnostics)**:Thesystemthatmonitorsandrecordsfaultsandproblemswiththevehicle'ssystems.

***J1850**:Acommunicationsprotocolusedinoldervehicles,oftenfoundintrucksandbuses.

此外，ISO/TR15031-2:2004ENRoadvehicles—Communicationbetweenvehicleandexternalequipmentforemissions-relateddiagnostics—Part2:Terms,definitions,abbreviationsandacronyms还对一些常用的符号和缩写进行了定义，如PID(ParameterID),GGL(GlobalGreenline)等等。这些符号和缩写在排放相关的诊断通信中非常重