VehicleRollBehaviorwithSteeringInputUnderVariousRoadExcitation

VehicleRollBehaviorwithSteeringInputUnderVariousRoadExcitation.pdf
Thevehiclerollbehaviorwithsteeringinputisanimportantpartofdrivingsafety,andfindingthevehicledynamicsac-curatelyinarealdrivingscenarioisaseriousconcern.However,previousresearchhasseldomconsideredtherelationbetweenroadexci-tationandvehiclelateralresponsewithsteeringinput.Toaddressthisissue,acomprehensiveanalysisofvehiclerollbehaviorwithsteer-inginputisstudiedinthispaper.Basedonthepowerspectraldensity(PSD)definitionofroadroughnessanditsrelationship,athree-dimensional(3-D)roadsurfacemodelisfirstintroducedforinternationalstandardizationorganization(ISO)levelAandlevelCtyperoadexcitations.Then,a6degreeoffreedom(6-DOF)modelincludingverticalandlateraldynamicsisproposed.Byvaryingthevehi-cleparameters,suchasvehicletotalmass,trackwidthandtheheightofthecenterofgravity(C.G.)ofsprungmass,thesystemre-sponserelationshipsbetweenroadexcitationandrolloverindex(RI)areillustrated.Thesimulationresultsshowthat,1)theinfluenceoftheheightofC.G.duetovehiclemasstransferringonrollbehaviorismostsensitiveunderconstantroadexcitation,2)apositivere-lationshipbetweenroadexcitationlevelandrollresponsecanbefoundunderconstantvehicleparameters.Finally,theproposedmodelisvalidatedinCARSIM(R)softwareandthesimulationresultsconfirmtheaccuracyofthemodel.ItisalsofoundthattheheightofC.G.duetovehiclemasstransferringandroadexcitationlevelcannotbeignoredwhilstanalyzingthevehiclerollbehaviorswithsteeringinput.Theresearchachievementsprovideatheoreticalinsighttoimprovetherollovertheoryandwillhavesignificantcontributiontopracticalappli-cations.
作者：WangZhenfeng GuLiang QinYechen LiuBingyi SunJinwei LiJian WangZhenyu UlhaqAtta
作者单位：SchoolofMechanicalEngineering,BeijingInstituteofTechnologyTianjinTiandeSuspensionSystemsCo.,Ltd
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：dynamicmodeling  3-Droadexcitation  vehicleroll  vehicleparameters  CARSIM(R)simulation
在线出版日期：2020年7月9日
基金项目：
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VehicleRollBehaviorwithSteeringInputUnderVariousRoadExcitation.pdf

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