DevelopmentofPluginHybridSystemforCClassVehicle

DevelopmentofPluginHybridSystemforCClassVehicle.pdf
Comparedwithpureelectricdrivingmoresuitableforsmallsizevehicles,HEV/PHEVisabettersolutiontoimprovefueleconomyforlarge-sizevehicles.Inthispaper,thedevelopmentofanewgenerationplug-inhybridsystemforFAWC-classvehicleisdescribed.Theplug-inhybridsystemisbasedonP2configuration,whichischaracterizedbyonetractionmotorandaseparatingclutch.Theobjectiveofthehybridsystemdevelopmentistoachievethebestpossiblefuelconsumptionbyahighlyefficientpowertrainandahybridcontrolsystem.Thecorecomponentsinthehybridsystemincludeahigh-efficiency4-cylinderGDI(GasolineDirectInjection)engine,CCM(ClutchCouplingwithMotor)module,7-speedDCT(DualClutchTransmission),Li-ionhigh-voltagebattery,DC/DCconverter,electricoilpump,on-boardchargerandsoon.TheCCMmodulewhichintegratestractionmotorandseparatingclutchisthemostimpor-tantcomponentinthishybridsystem.Theseparatingclutchcandecouplethecombustionengineduringpureelectricdrivingandalsocanoffertheoptiontostart-upthecombustionenginebyengagingtheclutch.Inordertoachievethevehicleperformancetarget,ahybridcontrolsystemwasdeveloped.Thecontroltechnologydevelopedfacili-tateshybridfunctionssuchase-driving,start-stop,recuperation,boostandsoon.Achallengingproblemofthehybridcontrolsystemisenginestartcontrol.ThereforeaDCTclutchslipcontrolfunctionwasdesignedtopreventenginestarttorquevariationtransmittingtothedrivewheels.Meanwhileastarttorquecalculationfunctionwasdesignedtoaccuratelyestimatethestartingtorquewhichincludesthedriverdesiringtorque,theenginestarttorqueandthecompensationtorque.Thehybridcontrolsystemwhichcontrolsthetractionmotor,theseparatingclutch,theDCTclutchandthecombustionengineatthesametimeachievessmoothvehicleaccelerationduringenginestartwhilethevehicleisrunning.Equippedwiththenewgenerationplug-inhybridsystem,thebest-in-classfueleconomyandexcellentpureelectricdrivingcharac-teristicswasachievedbytheFAWC-classvehicle.Asaresult,thesuperlowvalueoffuelconsumptionwas2.3L/100km,atthesametime,the52kmofpureelectricdrivingrangewasreachedbytheluxuryC-classvehicle.
作者：ZhaoZiliangWangGuangpingLaiRifei
作者单位：ChinaFAWGroupCorporationR&DCenter
母体文献：第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集
会议名称：第19届亚太汽车工程年会暨2017中国汽车工程学会年会  
会议时间：2017年10月24日
会议地点：上海
主办单位：中国汽车工程学会
语种：chi
分类号：
关键词：plug-in  hybridsystem  P2  controlstrategy
在线出版日期：2020年7月9日
基金项目：
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