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1、AbstractFour-wheelindependentdriveelectricmotorvehicleisnew.Asfourwheelstobecontrolledbyeachindependentmotor,itiseasyforFour-wheelindependentdriveelectricmotorvehicletomakethevehicletractioncontrollableandthechassistobeelectronizationandautomation.Technologypotationissupportedthenewt
2、ractionsystemforimprovingsafety,drivingandstability.Basedonthebasaldebugging,wecarriedoutsystemidentification,obtainedtheresponsecurveandsystemmodel.Roadtestiscarriedoutbyfollowingthefourmode(identical-torque-mode,identical-state-mode,differenttorquebetweenfrontaxleandrearaxle,differ
3、enttorquebetweenleftsideandrightside)ondifferentcondition(initialstarting,acceleration,evenpace,deceleration).Motorcurrent,speedandslipratioareanalyzed.Theresultsdemonstratethatidentical-state-modeisbetterthanidentical-torque-mode,samplecarwillleavethestraightlinewhendifferenttorquei
4、sactedonleftsideandrightside,whichisimpactedontractiondifferencevalue.Andsamplecarwillexhibitedslippingwhendifferenttorqueisactedonfrontandrear.Thebiggerthedifferencevalueis,themoreseriousslipratioisandthelowermotorefficiencyoutput.AftermodelingthevehiclebyADAMS,simulatingbytheroadte
5、stdata,comparingtheresultoftheroadtestandtheemulation,analyzingandrevisingtheparametersofthevehicle,itisfoundthatthevehiclecouldbemorestable.Thevehicleissatisfiedwiththeexperimentalrequirements.Theresearchgavethebesttractiondistributionmodeforstraightlinedrive,whichcouldbethefoundati
6、onoframptest,sidedirectionobstructiontest.Keyword4WD;identical-torque-mode;identical-state-mode;roadtest;ADAMSsimulation;万方数据目录摘要ABSTRACT第1章绪论...................................................................................................................11.1研究意义...................
7、...........................................................................................11.2国内外研究状况..................................................................................................21.2.1电动汽车现状........................................................................
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