电气基础

WelcometoattendBETTandBasicINSITETraining欢迎参加电控基础及INSITE培训CumminsEastAsiaTrainingCenter康明斯东亚培训中心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–INSITE5.4•INSITE5.4介绍–INSITE6.X•INSITE6.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•Ohm’slaw–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+R2•Parallelcircuit/并联电路•U=U1＝U2I=I1＋I21/R=1/R1+1/R2•Series/Parallelcircuit串/并联电路–Parallelcircuit/并联部分¤U=U1＝U2I=I1＋I21/R=1/R1+1/R2–Seriescircuit/串联部分¤I=I1=I2U=U1+U2R=R1+R2ElectronicControlSystemFamiliarization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•PulseWidthModulationorPWMactuators–PWM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•Deutschconnectors–Deutsch接头•WeatherPackconnectors–WeatherPack接头•Metri-Packconnectors–Metri-Pack接头•AMPconnectors–AMP接头•Boschconnectors–Bosch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&RepairBosch接头及维修•ToconnectSensors/Actuators–与传感器/执行器连接•Canonlyberepairedbyreplacingtheentirec