康明斯通用电控发动机基础培训

2007-08-25,IndustrialElectronicsTraining,1,电控发动机基础培训,2007-08-25,IndustrialElectronicsTraining,2,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,2007-08-25,IndustrialElectronicsTraining,3,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,2007-08-25,IndustrialElectronicsTraining,4,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,2007-08-25,IndustrialElectronicsTraining,5,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,2007-08-25,IndustrialElectronicsTraining,6,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,2007-08-25,IndustrialElectronicsTraining,7,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,2007-08-25,IndustrialElectronicsTraining,8,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,2007-08-25,IndustrialElectronicsTraining,9,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,2007-08-25,IndustrialElectronicsTraining,10,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,2007-08-25,IndustrialElectronicsTraining,11,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,2007-08-25,IndustrialElectronicsTraining,12,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,2007-08-25,IndustrialElectronicsTraining,13,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,2007-08-25,IndustrialElectronicsTraining,14,电控发动机的基本原理,Switch/开关,DoublePole-SingleThrowSwitch双刀单掷开关,2007-08-25,IndustrialElectronicsTraining,15,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,2007-08-25,IndustrialElectronicsTraining,16,电控发动机的基本原理,Actuators执行器,Solenoidsactuators电磁阀式执行器,PulseWidthModulationorPWMactuatorsPWM可变式执行器,2007-08-25,IndustrialElectronicsTraining,17,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,2007-08-25,IndustrialElectronicsTraining,18,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,2007-08-25,IndustrialElectronicsTraining,19,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,2007-08-25,IndustrialElectronicsTraining,20,电控发动机的基本原理,Connectortypes传感器接头类型,DeutschconnectorsDeutsch接头WeatherPackconnectorsWeatherPack接头Metri-PackconnectorsMetri-Pack接头,AMPconnectorsAMP接头BoschconnectorsBosch接头,2007-08-25,IndustrialElectronicsTraining,21,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,2007-08-25,IndustrialElectronicsTraining,22,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,2007-08-25,IndustrialElectronicsTraining,23,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）,2007-08-25,IndustrialElectronicsTraining,24,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,2007-08-25,IndustrialElectronicsTraining,25,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,2007-08-25,IndustrialElectronicsTraining,26,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,2007-08-25,IndustrialElectronicsTraining,27,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,2007-08-25,IndustrialElectronicsTraining,28,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，从缸体通过小于或等于0.02欧姆的电瓶线回到蓄电池负极。FrameReturns-Cabandchassiscomponentsshouldhavecommongroundpointstoreducegroundloops.-Thevehiclechassismustbegroundedtoeithertheengineblockgroundingstudortothebatterynegative,butnottoboth.车架回路驾驶室和底盘的电器组件应只有一个公共接地点，减少接地环流。-车辆底盘只能接到缸体接地端或蓄电池负极中的一个，不能两者都接。,2007-08-25,IndustrialElectronicsTraining,29,安装过程中的注意事项,ECMtoVehicleConnectionProcedure:将ECM连到车上电源的程序1、AllECMpowerandI/Oconnectionsmustbemadebeforeconnectingthevehiclebatteriesintothevehicleelectricalsystem.将车辆蓄电池连接至车辆电气系统之前，必须先进行所有ECM供电和I/O接线的连接.2、TheBattery(+)connectionmustbeconnectedaftertheBattery(-)connectionanddisconnectedbeforetheBattery(-)connection.加电时：先接负极，后接正极。断电时：先断正极，后断负极。3、TheECMmustbeconnectedtothebatteryandenergizedonlywhenthekeyswitchisOFF.只能在钥匙开关断电后，才允许把ECM接到蓄电池并通电。4、TheECMshouldneverbepoweredfromasourceoutsidethevehiclechassis.ECM不得从车辆底盘外部的电源取电。,2007-08-25,IndustrialElectronicsTraining,30,安装过程中的注意事项,VehicleBatteryDisconnectionProcedure:车辆的蓄电池断电程序：Ifthefollowingprocedureisnotfollowed,faultcodesandundesirableoperationmayresult.如果不按照下面的程序断电，将会产生故障代码。1、EnsuretheKeyswitchhasbeenOFFforatleast30seconds.在钥匙开关断电至少30秒后，才允许断电。2、DisconnectthePOSITIVEBatteryCable.断蓄电池正极。3、DisconnecttheNEGATIVEBatteryCable.断蓄电池负极。,2007-08-25,IndustrialElectronicsTraining,31,安装过程中的注意事项,DatalinkGrounding总线设备接地Alldatalinkdevicesandadaptersmustshareacommongroundtothevehiclebatterysystem.所有的总线设备和适配器只能有一个公共接地点连接到蓄电池系统。Notethattheshieldshouldbegroundedonlyatonepointwithaconnectiontothebatterynegative.屏蔽线必须是连续的，且只能有一点连到蓄电池负极。,2007-08-25,IndustrialElectronicsTraining,32,安装过程中的注意事项,WeldingRequirements焊接要求Weldingontheengineorenginemountedcomponentsisnotrecommended.不建议在发动机上或发动机安装部件上进行焊接CumminsrequiresdisconnectingallECMconnectors.焊接时，康明斯要求断开所有的ECM接头。Attachtheweldergroundcablenomorethan0.61meters(twofeet)fromthepartbeingwelded.连接电焊机接地电缆时，使该电缆距离焊接零件不超过0.61米（2英尺）NeverconnectthegroundcableoftheweldertotheECM.不要将电焊机的接地电缆连接在ECM上。,2007-08-25,IndustrialElectronicsTraining,33,安装过程中的注意事项,弯曲点至少远离接头英寸处,2007-08-25,IndustrialElectronicsTraining,34,安装过程中的注意事项,接头应水平安装。不用的插孔应密封,2007-08-25,IndustrialElectronicsTraining,35,安装过程中的注意事项,线束的支撑与捆绑点应远离接头英寸处,2007-08-25,IndustrialElectronicsTraining,36,安装过程中的注意事项,不用的插孔应用密封塞堵上。,2007-08-25,IndustrialElectronicsTraining,37,常见的故障及处理方法,故障指示灯报警指示灯报警指示灯提供重要的操作员信息。操作者应该及时地注意这些信息。停机指示灯停机指示灯提供关键的操作员信息。这些信息要求操作者快速响应并作出决定。钥匙开关转到ON位置而诊断开关保持