汽车专业英语教案3

浙江工业职业技术学院日期：年月日No3课题：Unit2EFISystem目的要求：1、learnthestructureEFISystem2、understandthemainpartsofEFISystem重点、难点：重点：ListthemainpartsofanEFISystem难点：ListthemainpartsofanEFISystem复习提问要点：1、词汇2、翻译句子教具、实验及教学手段：教具：教材、教案、备课笔记。教学手段：讲解为主，提问为辅。作业布置：1、3教学反映：课后分析：教学过程：1.wordsandexpressionsinduction(发动机)进气actuator执行器density浓度oxygen[化]氧atmospheric大气的determine决定injection喷射optimum最适宜的ignition点火current当前的diagnostic诊断occurrence发生malfunction故障content含量utilize利用duration持续（时间）monitor监控RPM=RevolutionPerMinute发动机转速microcomputer微电脑trigger触发precisely精确地instant片刻targetvalue目标值bypass旁路abnormality反常indicator指示器combinationmeter组合仪表identify确认diagnostictroublecode=DTC故障码blink闪烁fail-safe失效保护illuminate照明AirflowSensor空气流量计IntakeAirTemperatureSensor进气温度传感器ThrottlePositionSensor节气门位置传感器EGR=ExhaustGasRecirculation废气再循环KnockSensor爆震传感器Park/NeutralPosition(PNP)Switch驻车/空挡位置开关Cranking起动equip装备list列出idle-up怠速提升VacuumSolenoidValve真空电磁阀fuelpump燃油泵injector喷油器igniter点火器pressureup增压filter滤清器regulator调节器pulsation脉动damper衰减器mount安放draw吸收rail油轨evenly平稳地excess过量的fluctuation波动metered计量的sufficient足够的combustionchamber燃烧室IACvalve(IdleAirControl)怠速空气控制阀warmup暖机interference干扰二、Fig.1-2-1AEFISystem（燃油系统）1-ignitionswitch2-EFImainreplay3-vehiclespeedsensor4-terminalTE15.PNPswitch6-A/Ccompressor7-starter8-headlightswitch9-defoggerswitch10-MAPsensor11-intakeairtemp.sensor12-IACvalve13-throttlepositionsensor14-enginecoolanttemperaturesensor15-knocksensor16-EGRvalve17-VSVforEGR18-distributorW/ignitioncoil19-igniter20-battery21-malfunctionindicatorlamp22-circuitopeningrelay23-fueltank24-fuelpump25-fuelfilter26-fuelpressurepulsationdamper27-fuelpressureregulator28-injector29-mainoxygensensor30-suboxygensensorFig.1-2-21-fuelpressurepulsationdamper(燃油压力脉动衰减器)2-injectors(喷油器)3-fuelpressureregulator(燃油压力调节器)4-fuelfilter(燃油滤清器)5-fuelpump(燃油泵)