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1、汽车实用英语AutomobileEnglishTaskThreeAutomobileChassisObjectives1.Toknowabouttheimportanceoftheautomobilechassis;2.Tolearnthemainpartsoftheautomobilechassis;3.Tolearnthefunctionofthebrakingsystem,powertrain,steeringsystem,andsuspensionsystem.BackNext1BackNextPartⅠWarmupKnowaboutautomobilechassispowe
2、rtrainsteeringsystemRunninggear(suspensionsystem,wheels,tires)brakingsystemchassisdifferentialMaindrivegearDriveshafttransmissionclutchBackNextPartⅠWarmupKnowaboutautomobilechassis1BackNextPartⅠWarmupKnowaboutautomobilechassis1BackNextPartⅠWarmupKnowaboutautomobilechassisGrasptheusefulwordsandp
3、hrasespulltoonesidetireinflationtirewearPartⅡListeningandspeakingBackNextThefourmainsystemsofautomobilechassisarepowertrain(ordriveline),steeringsystem,brakingsystemandsuspensionsystem.PartⅢReading PassageOneMainstructureofautomobilechassisBackNextPartⅢReading PassageOneMainstructureofautomobil
4、echassis SteeringsystemBackNextPartⅢReading PassageOneMainstructureofautomobilechassis SteeringsystemBackNextThesteeringsystemisthemeansbywhichthedriverofavehicleisabletocontrolthepositionofthefrontwheels.Thesystemmustprovideeaseofhandling,gooddirectionalcontrol,andstability.BackNextPartⅢReadin
5、g PassageOneMainstructureofautomobilechassis SteeringsystemTherearetwotypesofthesteeringsystem,manualsteeringsystemandpowersteeringsystem.Powersteeringsystemincludeshydraulicpowersteeringsystem,electricpowersteering(EPS)andelectrichydraulicpowersteeringsystem(EHPS).BackNextPartⅢReading PassageO
6、neMainstructureofautomobilechassis SteeringsystemType:MechanicalsteeringsystemPowersteeringsystemHydraulicpowersteeringsystemElectroniccontrolpowersteering(EPS)Electro-hydraulicpowersteeringsystem(EHPS)PartⅢReading PassageOneMainstructureofautomobilechassis SteeringsystemBackNextThekeycomponent
7、sthatmakeupthesteeringsystemarethesteeringwheel,steeringcolumn,steeringshaft,steeringgear,pitmanarm,draglink,steeringarm,balljoints,andtie-rodassembly.Hydraulicpowersteeringsystemsaddahydraulicpump,fluidreservoir,hoses,andeitherap
