康明斯通用电控发动机基础培训

2007-08-25IndustrialElectronicsTraining1电控发动机基础培训2007-08-25IndustrialElectronicsTraining2培训内容•电控发动机的基本原理•安装过程中的注意事项•常见的故障及处理方法2007-08-25IndustrialElectronicsTraining3电控发动机的基本原理•Inputdevice/输入设备–Sensors/传感器输入–Switches/开关输入•ElectronicControlModuleorECM/电子控制模块–microprocessor/微处理器–Memory/存储器•Outputdevice/输出设备–Actuators/执行器ElectronicControlSystemFamiliarization电子控制系统介绍2007-08-25IndustrialElectronicsTraining4电控发动机的基本原理Sensors传感器•Temperaturesensors–温度传感器•Pressuresensors–压力传感器•Combinationsensors–组合式传感器•Fluidlevelsensors–液位传感器•Speedandpositionsensors–速度及位置传感器2007-08-25IndustrialElectronicsTraining5电控发动机的基本原理TemperatureSensors温度传感器•Include/包括:•Coolanttemperaturesensors–冷却液温度传感器•Intakeairtemperaturesensors–进气温度传感器•Fueltemperaturesensors–燃油温度传感器•Oiltemperaturesensors–机油温度传感器•OEMsuppliedtemperaturesensors–主机厂提供的温度传感器2007-08-25IndustrialElectronicsTraining6电控发动机的基本原理FeatureofTemperatureSensors温度传感器的特点•TemperatureSensorsutilizethermistors–温度传感器应用热敏电阻•Theresistanceofsensorsisfrom500ohmsto40kohms–传感器的电阻值范围在500到40千•Theresistanceofsensorsisinverselypropertionaltotemperature,thechangeinresistanceisnotliner–传感器的电阻与温度成反比,这种变化不是线性的•Troubleshootingtemperaturesensors:checktheresistanceofthesensors–温度传感器的故障诊断：–检测传感器的电阻2007-08-25IndustrialElectronicsTraining7电控发动机的基本原理ApplicationofPressureSensors压力传感器的应用•Oilpressuresensors–机油压力传感器•Ambientairpressuresensors–大气压力传感器•Fuelpressuresensors–燃油压力传感器•Intakeairpressuresensors/Boostpressuresensors–进气压力传感器/增压压力传感器•OEMsuppliedpressuresensors–主机厂提供的压力传感器2007-08-25IndustrialElectronicsTraining8电控发动机的基本原理Combinationsensors组合式传感器•Combinebothpressureandtemperaturesensorsinonehousing–将压力和温度传感器组合在同一壳体上•Include/包括:–Oilsensors•机油组合传感器–Intakeairsensors•进气组合传感器–Fuelsensors•燃油组合传感器2007-08-25IndustrialElectronicsTraining9电控发动机的基本原理FluidLevelSensors液位传感器•Coolantlevelsensor–冷却液液位传感器•Water-In-Fuelsensor–油中有水传感器2007-08-25IndustrialElectronicsTraining10电控发动机的基本原理SpeedandPositionSensors速度及位置传感器•Enginespeedsensor–发动机速度传感器•Enginepositionsensor–发动机位置传感器•Vehiclespeedsensor–车辆速度传感器2007-08-25IndustrialElectronicsTraining11电控发动机的基本原理SpeedandPositionSensors速度及位置传感器•Variablereluctancesensors–可变磁组传感器•Halleffectsensors–霍尔效应传感器2007-08-25IndustrialElectronicsTraining12电控发动机的基本原理PositionSensor位置传感器•Acceleratorpositionsensor–油门踏板位置传感器•Idlevalidationsensor–怠速有效传感器2007-08-25IndustrialElectronicsTraining13电控发动机的基本原理Switch/开关•SinglePole-SingleThrowSwitch–单刀单掷开关•SinglePole-DoubleThrowSwitch–单刀双掷开关2007-08-25IndustrialElectronicsTraining14电控发动机的基本原理Switch/开关•DoublePole-SingleThrowSwitch–双刀单掷开关2007-08-25IndustrialElectronicsTraining15电控发动机的基本原理SymbolofSwitches开关的符号•SinglePole-SingleThrowSwitch–单刀单掷开关•SinglePole-DoubleThrowSwitch–单刀双掷开关•DoublePole-SingleThrowSwitch–双刀单掷开关2007-08-25IndustrialElectronicsTraining16电控发动机的基本原理Actuators执行器•Solenoidsactuators–电磁阀式执行器•PulseWidthModulationorPWMactuators–PWM可变式执行器2007-08-25IndustrialElectronicsTraining17电控发动机的基本原理Otherelectronicdevice其它电器设备•Gridheater/栅格加热器•Relay/继电器•Lamp/指示灯•Fuse/保险丝2007-08-25IndustrialElectronicsTraining18电控发动机的基本原理ElectricalDiagramUsage电控系统电路图的使用•Typesofelectricaldiagrams–电路图类型•Identifycomponentsonawiringdiagram–识别电路图中的各种符号•Traceacircuitonawiringdiagram–如何跟踪电路图中线路•Colorcodedwires–线路颜色含义2007-08-25IndustrialElectronicsTraining19电控发动机的基本原理ElectronicWiring电控系统线束•Wiretypesandwiregauge–导线类型及标号•Identifydifferentconnectortypes–识别不同类型的传感器接头•Identifythemethodsforrepairingdifferentconnectors–掌握不同类型的传感器接头维修方法2007-08-25IndustrialElectronicsTraining20电控发动机的基本原理Connectortypes传感器接头类型•Deutschconnectors–Deutsch接头•WeatherPackconnectors–WeatherPack接头•Metri-Packconnectors–Metri-Pack接头•AMPconnectors–AMP接头•Boschconnectors–Bosch接头2007-08-25IndustrialElectronicsTraining21电控发动机的基本原理DeutschconnectorsDeutsch接头•3pin/3针•6pin/6针•9pin/9针•21pin/21针•29pin/29针2007-08-25IndustrialElectronicsTraining22电控发动机的基本原理DeutschconnectorsRepairDeutsch接头维修•TerminalRemovalTools–端线拆卸工具(专用)•Size/规格–Colorcoded/以颜色标记2007-08-25IndustrialElectronicsTraining23电控发动机的基本原理WeatherPackconnectors&RepairWeatherPack接头及维修•2pin/2针•3pin/3针•4pin/4针•TerminalRemovalTools–端线拆卸工具（专用）2007-08-25IndustrialElectronicsTraining24电控发动机的基本原理Metri-PackconnectorsMetri-Pack接头•Terminalsarenotreplaceable–端线不可维修•Ifoneterminalisdamaged,theconnectormustbereplaced.–如果某端线损坏了,必须更换整个接头2007-08-25IndustrialElectronicsTraining25电控发动机的基本原理AMPconnectors&RepairAMP接头及维修•ToconnectECM–与ECM连接•Manypininaconnectorbody–接头上有许多针•TerminalsCanbereplacedindividually–端线可单独维修2007-08-25IndustrialElectronicsTraining26电控发动机的基本原理Boschconnectors&RepairBosch接头及维修•ToconnectSensors/Actuators–与传感器/执行器连接•Canonlyberepairedbyreplacingtheentireconnector–只能更换整个接头•ToconnectECM/与ECM连接–Manypininaconnectorbody•接头上有许多针•Usagepinremovaltools–使用端线拆卸工具2007-08-25IndustrialElectronicsTraining27电控发动机的基本原理WiresRepair导线维修•ButtSplice–导线接头•CorrectRepairOrder–正确的维修顺序2007-08-25IndustrialElectronicsTraining28安装过程中的注意事项PowerandGroundrequirements电源和接地要求•EngineBlockGround-TheECMReturn(Ground)mustbeconnectedtotheengineblockandfromtheengineblockbacktothebatteryreturnwitharesistanceof0.02Ohmsorless.发动机缸体接地--ECM的地线必须连到缸体，从缸体通