汽车专业英语 教学课件 作者 幺居标 Model Seven Automotive Drive Train.ppt

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1、ModelSevenAutomotiveDriveTrainWarm-upSuggestions（建议）1.LetthestudentsputtheChinesenamesunderthepictures.(将下面零件名称写在图片下面)2.Askthestudentstoreadaloudthenamesofeachtool.（让学生大声读出零件名称）3.Trytospeakasmanycartoolsaspossible.（试着说出一些其他的零件工具）Fig.I-17frontaxledifferential前桥差速器angletransmission传动角re

2、araxledifferential后桥差速器all-wheeldriveclutch全轮驱动离合器frontdriveshaft前驱动轴engine发动机rearaxledrive后桥驱动transmission变速器Passagelearning（课文学习）AutomotiveDriveTrain汽车传动系Thedrivetrainofavehicleconsistsoftheclutch,thegearbox,thepropellershaft,thefinaldrivewithdifferentialandthedriveshaftsofthewheel.

3、Together,thesecomponentscanalsobereferredtoasthepowertrainortransmissionline.Functions:ConvertenginetorqueandenginespeedTransmittorquetothedrivewheelsTypesofdrive:Therearemainlythreetypesofdrive:rearwheeldrive,frontwheeldriveandall-wheeldrive.Rearwheeldrive:includesfront-enginedrive

4、,transaxledrive,rear-enginedrive,mid-enginedriveandunderfloor-enginedrive.Frontwheeldrive:Incaseoffrontdrive,theengineissituatedeitherinfrontof,aboveorbehindthefrontaxle.All-wheeldrive:includespermanentall-wheeldriveandconventionalswitchableall-wheeldrive.Hybriddrive:Incaseofahybriddr

5、ive,twodifferentpowerplantsarecombinedinonevehicletoassumethedrivefunction,e.g.adieselengineforlong-distancedrivingandanelectricmotorforemission-freeurbandriving.Newwordsandexpressions(生词和词组)powertrainn.传动系rear-enginedriven.发动机后置驱动transmissionlinen.传动线mid-enginedriven.发动机中置驱动torquen.转

6、力矩underfloor-enginedriven.发动机下置驱动rearwheeldriven.后轮驱动hybriddriven.混合动力驱动frontwheeldriven.前轮驱动emission-freeadj.无排放的all-wheeldriven.全时四驱transaxlen.变速驱动桥front-enginedriven.发动机前置驱动gearboxn.齿轮箱propellershaftn.驱动轴finaldriven.主减速器Readingcomprehension（补充阅读）TransmissionTypeTherearemainlytwotyp

7、esoftransmissions:manualandautomatic.Ifyouhaveamanualtransmission,youhavetoshiftthegearsyourself,usuallywithasticklocatedonyourconsoleandclutchpedal.Ifyouhaveanautomatictransmission,themechanismchangeswithoutanyhelpfromyou.Thisisaccomplishedthroughasystemthatworksbyoilpressure.Eachshi

8、ftoft