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1、DK3023_book.fmPage657Friday,April8,20059:34AM30DriveandControlSystemforHybridElectricVehiclesWengKeongKevinLim,SamanKumaraHalgamuge,andHarryCharlesWatsonUniversityofMelbourne,Melbourne,Australia30.1INTRODUCTIONHybridvehicleshavemultiplepowersourcesthatcanbeseparatelyorsimultaneousl
2、yusedtopropelthevehicle.Differentwaysofintegratingthesepower-producingcompo-nentswithelectricalenergystoragecomponentsallowfordistincttypesofhybridelectricvehicle(HEV)configurations.Generally,fuelenergymaybeconvertedbyanumberofdistinctheatengines,suchasaninternalcombustionengine(ICE
3、),whileanelectricalmotor(EM)derivesitselectricalenergyfrombatteries,ultracapacitors,solarcells,fuelcells,orgeneratorsdrivenbyheatenginesorflywheels.Todate,themostpromisinghybridvehicleistheHEVdrivenbyanICEandanEMpoweredbyon-boardbatteries.HEVsolvesmanypureelectricvehicles’problemsan
4、dminimizestheshortcomingsofconven-tionalvehicles,whileprovidingthebenefitsofbothelectricandconventionalvehicles.Themajorhybridconfigurations(HCs)areseriesandparallelconfigurations,showninFigure30.1andFigure30.2,respectively.Inserieshybrids,anICEpowersageneratorthateithersupplieselectr
5、icalpowertotheEMorchargesthebatteries.TheICEdoesnotmechanicallydrivethewheelsdirectly.Asfortheparallelhybrid,anICEsuppliesmechan-icalpowerdirectlytodrivethewheels,withtheEMdirectlycoupledtothepropulsionsystem.ParallelhybridshavetheflexibilitytopropelavehiclewithpureICEonly,pureEMonl
6、y,oracombinationofbothICEandEMsimultaneously,basedontheControlStrategy(CS)settings.Currentlythereexistsathirdtypeofhybridconfigurationthatcombinesthebestaspectsofbothseriesandparallelconfigurations,knownastheseries-parallelhybrid,asshowninFigure30.3.ThisconfigurationallowstheICEtodire
7、ctlydrivethewheels,butalsohastheabilitytosimultaneouslychargethebatteriesandtopowertheEMthroughagenerator.©2005byTaylor&FrancisGroup,LLCDK3023_book.fmPage658Friday,April8,20059:34AMInternalCombustionGeneratorEngineMotorWheelsBatteryMechanicalLinkElectricalLinkNote:Arrowindicatespow
8、erflowdirectionFigure30.1S
