车辆工程专业英语新能源汽车综述.doc

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1、CharacteristicsandDevelopmentofSomeKindsofNewEnergyVehiclesAbstractNowtheglobalautomotiveindustryisfacingthechallengeofenergyandenvironment,anddevelopingnewenergyvehiclesbecomesmanyglobalautomotivegroups’ssameplan.Butnotallofvarioustypesofnewenergyvehicleswhichhavetheirownadvantagesanddisadvant

2、agescanbecomethemostpromisingfuturevehicles.IwillintroducefeaturesanddevelopmentofPureElectricVehicles、HybridElectricVehicle(HEV)、FuelCellElectricVehicles(FCEV)、NaturalGasVehicles、HydrogenEngineVehiclesandDMEVehiclesEtc.Atlastwewillknowwhichkindofthenewenergyvehicleswillbecomemainstreaminthefut

3、ureofthecarbycomparing.KeyWord:NewEnergyVehiclesFuturecarsHybridHybridcarsishybridelectricvehicleswhichusemorethanonekindofenergyprovidespowertodrivesthecar.Currentlyhybridcarsisthecombinationoftraditionalfossilfuelsenginandelectricmotor.Themostprominentadvantageofhybridcarsisitsfueleconomy.The

4、maximumpoweroftheengincandeterminebytheaveragepower,sothattheengincanworkinlesspollutionandlowerfuelconsumptioncondition.Thatmakeshybridcarssave30%~50%fulecomparewithtraditionalcars,andsignificantlyreducingemissionsatthesametime.Energyrecoveringfrombrakingbecomeeasytoo.Buttheproblemofhybridcari

5、sit’shighpriceandbasiclynofuelsavingatlongdistance、highspeeddriving.Atpresent,China'shybridvehicletechnologydevelopmentfast,somemodelshavebeenintheperiodofpractical.TaketheRoewe750ofShanghaiAutomotiveGroupforexample,ithasalreadyonsale.Intheworldwild,ToyotaPriushybridcarfirstintroducedinJapanin1

6、997,andtheothermajorautomobilecompanieshavelaunchedtheirownhybridproducts,suchastheHondaInsight,GMSaturnVUE,FordEscapeandsoon.Withtechnicalprogressandexpansionofproductionscale,thecosthasdroppedsignificantly.Pureelectricvehiclesisdrivenbyelectricmotor,whichispoweredbycar-carrybattery,andmeetthe

7、requirementsoftrafficsafetyregulations.Pureelectricvehicleusingarechargeablebattery,andthebasicstructureisnotcomplicated.Electricgeneratorsandcarbatteriesareoneofthekeycomponents,amongwhichthemostcriticalisbattery.Pureelectricvehi