电气基础.ppt

BETT&INSITETraining电控发动机基础培训,Coursecontents/本课程主要内容：BETT基本电工理论及故障诊断排除INSITE5.4INSITE5.4介绍INSITE6.XINSITE6.X介绍,BasicElectricalTheory&Troubleshooting基本电工理论及故障诊断与排除,Objective本课程主要内容：BasicElectricalTheory基本电工理论DigitalMulti-meterUsage数字万用表的使用ElectronicCircuits电路ElectronicControlSystemfamiliarization发动机电控系统ElectronicDiagramUsage电路图的使用ElectricalWiring电控系统线束,ElectricalTroubleshootingLogicalSteps电控系统故障诊断步骤,GatherInformation了解情况AnalyzeInformation分析原因PerformTests进行测试PerformRepairs进行维修Retest着车试验,BasicElectricalTheory基本电工理论,Definebasicelectricalterms明确基本电工术语Definebasicelectricalconcepts明确电学基本概念ExplainVoltage,Current,Resistance阐述电压，电流，电阻Ohmslaw欧姆定律,Electricshock触电,Electricshock触电,DigitalMulti-meterFeature数字式万用表特性,Auto-range自动量程特性RangeHoldorManualHold量程保持特性Touchhold数据保持特性,DigitalMulti-meterUsage数字式万用表的用途,Totakevoltage测量电压Totakecurrent测量电流Totakeresistance测量电阻Totestadiode测试二极管,ElectricalCircuits电路,Acompletecircuit完整电路Circuittypes电路类型Calculatevoltage,currentandresistance电路参数计算Troubleshootingshortcircuits,opencircuits,andhighresistancecircuits电路故障诊断：短路，断路及高电阻,Differenttypesofelectricalcircuits不同类型的电路,Seriescircuit/串联电路I=I1=I2U=U1+U2R=R1+R2Parallelcircuit/并联电路U=U1U2I=I1I21/R=1/R1+1/R2Series/Parallelcircuit串/并联电路Parallelcircuit/并联部分U=U1U2I=I1I21/R=1/R1+1/R2Seriescircuit/串联部分I=I1=I2U=U1+U2R=R1+R2,ElectronicControlSystemFamiliarization电子控制系统介绍,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,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,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,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,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,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,TypeofPressureSensors压力传感器的种类,Capacitancepressuresensors电容压力传感器Crystalpressuresensors晶体压力传感器“Guage”pressuresensors“仪表”式压力传感器“Absolute”pressuresensors“绝对”压力传感器,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,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,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,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,PositionSensor位置传感器,Acceleratorpositionsensor油门踏板位置传感器Idlevalidationsensor怠速有效传感器,Switch/开关,SinglePole-SingleThrowSwitch单刀单掷开关SinglePole-DoubleThrowSwitch单刀双掷开关,Switch/开关,DoublePole-SingleThrowSwitch双刀单掷开关,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,Actuators执行器,Solenoidsactuators电磁阀式执行器,PulseWidthModulationorPWMactuatorsPWM可变式执行器,Otherelectronicdevice其它电器设备,Thermaldevice/加热器Relay/继电器Lamp/指示灯Fuse/保险丝,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,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,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,DeutschconnectorsDeutsch接头,3pin/3针6pin/6针9pin/9针21pin/21针29pin/29针,DeutschconnectorsRepairDeutsch接头维修,TerminalRemovalTools端线拆卸工具(专用)Size/规格Colorcoded/以颜色标记,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）,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,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,Boschconnectors