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附录 A外文翻译 英文资料翻译 [原文] Wheeltypeelectriccarsdrivingsystem 1.Developmentsituationandoverview Wheeltypeelectriccarisakindofdrivingtypeelectriccars,therearetwobasic forms,namelydirectdrivingtypeelectricwheelsandbeltwheeledgesreducer electricwheels.Itwillbeinstalledonthewheelhubofmotorisomitted,traditional clutch,thetransmission,themainreduceranddifferentialunitetc,simplifies configurationandimprovethetransmissionefficiency,andtorealizetheelectric controltechnologythroughtheelectronicdifferentialcontrolwheels.Electricwheel willbecomethefuturedevelopmentdirectionofelectriccars. TheelectriccarwheeltypeofthestudyinJapan.Japan'skeiouniversityof electriccarresearchgrouphasdevelopedfivedifferentformsofvehicles.In1991, withTokyoelectricpowercompanyjointlydevelopedbyIZAelectric-carseat,Cd batterypowermethod,withfourratedpowerfor6.8kW,25kWreachedthepeak poweroftherotorpermanentmagnetsynchronousmotordrivingwheelspeedcan reachthehighest,176km/h.In1996,theJapanesenationalinstituteofenvironmental groupsjointlydevelopedelectricwheeldrivesystemofrearwheeldriveelectriccars, theECOelectricwheeldrivesystemchoosespermanentbrushlessdcmotor,power ratingfor6.8kW,for20kWpeakpower,andplanetarygearreducer,theelectric wheelsadoptmechanicalbrakingandmotorisacombinationofregenerativebraking. In2001,thegrouplaunchedbyusinglithiumbatteryforpowersupply,eighthigh poweracsynchronousmotordrivingwheelindependentKAZelectriccar.The installationoftheeightwheels,andgreatlyincreasedthepower,therebythehighest speed311km/h.TheelectricsystemKAZusedinhighspeed,highperformanceof motorrotorinside,thepeakpowercanreach55kW,improvetheabilityofthelimit speedKAZcars,makeits0~100km/haccelerationtimereach8s.Inordertomake themotoroutputspeedwiththeactualrequirements,wheelrotationKAZelectric systemmatchingplanetgear.UsingKAZfrontdiscbrakedrumbrakeusing,rear.In 2003,ToyotamotorcompanylaunchedinTokyomotorshowthefuelcellconceptcar isalsousedtoendanargument-Nelectricwheeldrivetechnology.Generalmotors corp.In2001,thenewtri