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1、上海交通大学硕士学位论文转弯制动工况下,汽车制动力分配策略仿真研究姓名:周继忠申请学位级别:硕士专业:车辆工程指导教师:陈俐20080101上海交通大学学位论文SIMULATIONRESEARCHFORBRAKEFORCEDISTRIBUTIONSTRATEGYUNDERTHECORNERINGBRAKEWORKCONDITIONOFVEHICLEABSTRACTThebrakequalityisoneofthekeyandimportantqualitiesofvehicle.Itisacomplexan
2、ddangerousworkconditionthatthebrakeisexecutedwhenthevehiclerunsundercorneringworkcondition.Duringthiscourse,ifthebrakeforceisdistributedunreasonably,thevehiclewilllosestabilityandthiswillresultsinsideslip,crisisturnandtrackoffset・Thesesituationsdiscussedab
3、ovewillresultinaccidents・Thispapermainlyresearchesonthebrakeforcedistributionstrategyunderthisworkcondition.First,Theeightfreedomofmotionvehiclemodelisconstructedbyintroducingconventionalcoordinates・Thewholevehiclemodelincludeswheelmodel,brakeactuatormodel
4、,vehiclechassismodel,loadshiftcalculationmodel,wheellateraldeviationangelcalculationmodelandsoon.ThebasementwhichforresearchingonsimulationresearchofvehiclecorneringbrakedynamiccharacteristicandESBScontrollogicvalidationisestablishedbyconstructingthewholev
5、ehiclemodel・Secondly,turningbrakingvehiclesfactorsaffectingthestabilityof上海交通大学学位论文thein-depthanalysis,andturningbrakingvehicledynamiccharacteristicsanalysisofthesimulation,turningbrakingvehiclesinstabilitymanifestedmainlyinthewheelstendtolosetheirattachme
6、ntStabilityandvehiclestendtoshiftstability・Thispapersummarizesimproveandenhancetrafficcontrolandstabilityoftheprogramme,borrowingABSsystemhardwareandcontrolthinking,throughAckermanntocalculateandcontrollogicmodelABSidentifiedESBSslipratethreshold,andtaketh
7、einitiativeinmaintainingbuiltaturningbrakingVehiclestabilityoftheESBS(EnhancedStabilityBrakeSystem)Highbrakingstabilitysystemcontrollogic,aswellasthedeterminationoftheparameters.TheBrakedturning-vehicleiscontrolledinESBSandABSbyusingMatlab/Simulinksimulati
8、onsoftware,whicharesimulatedinthehighroadadhesion,lowattachmentroadandtwo-wayroad・ItisverificatedthatthecontrolinglogiciofESBSismoreeffectivethanoneofABStokeepthestabilityofthebrakedturning-vehicle.Thepaperde