预览加载中,请您耐心等待几秒...
1/10
2/10
3/10
4/10
5/10
6/10
7/10
8/10
9/10
10/10

亲,该文档总共39页,到这已经超出免费预览范围,如果喜欢就直接下载吧~

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

更多汽车资料请访问 中国汽车技术论坛: CHAPTER1AUTOMOTIVEBASICS1.1PrincipalComponentsToday'saveragecarcontainsmorethan15,000separate,individualpartsthatmustworktogether.Thesepartscangroupedintofourmajorcategories:engine,body,chassisandelectricalequipment.1.2EngineTheengineactsasthepowerunit.Theinternalcombustionengineismostcommon:thisobtainsitspowerbyburningaliquidfuelinsidetheenginecylinder.Therearetwotypesofengine:gasoline(alsocalledaspark-ignitionengine)anddiesel(alsocalledacompression-ignitionengine).Bothenginesarecalledheatengines;theburningfuelgeneratesheatwhichcausesthegasinsidethecylindertoincreaseitspressureandsupplypowertorotateashaftconnectedtothetransmission.1.3BodyAnautomobilebodyisasheetmetalshellwithwindows,doors,ahood,andatrunkdeckbuiltintoit.Itprovidesaprotectivecoveringfortheengine,passengers,andcargo.Thebodyisdesignedtokeeppassengerssafeandcomfortable.Thebodystylingprovidesanattractive,colorful,modernappearanceforthevehicle.1.4ChassisThechassisisanassemblyofthosesystemsthatarethemajoroperatingpartofavehicle.Thechassisincludesthetransmission,suspension,steering,andbrakesystems.Transmissionsystems―conveysthedrivetothewheels.Themaincomponentsareclutch,gearbox,driveshaft,finaldrive,anddifferential.Suspension―absorbstheroadshocks.Steering―controlsthedirectionofthemovement.Brake―slowsdownthevehicle.1.5ElectricalEquipmentTheelectricalsystemsupplieselectricityfortheignition,horn,lights,heater,andstarter.Theelectricitylevelismaintainedbyachargingcircuit.Thiscircuitconsistsofthebattery,alternator(orgenerator).Thebatterystoreselectricity.Thealternatorchangestheengine'smechanicalenergyintoelectricalenergyandrechargesthebattery.NewWordsPrincipalcomponent主要部件category种类,类型body车身chassis底盘layout布置powerunit动力装置internalcombustionengine内燃机cylinder汽缸gasoline汽油spark火花ignition点燃,点火diesel柴油机compression压缩shaft轴transmission传动系sheetmetal金属板shell外壳hood(发动机)罩trunkdeck行李舱盖cargo货物styling样式assembly总成,装配suspension悬挂,悬置shock冲击steering转向,操纵brake刹车,制动器clutch离合器gearbox变速器driveshaft传动轴finaldrive主减速器,后桥d