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1、附 录附录ASteeringBehaviorandControlTechnology0fFour—wheelSteeringAutomobiIeABSTRACTThispaperanalysesthecharacteristicsofcarfour-wheelsteeringcontrolto,summarizestheprincipleofconstructionfour-wheelsteeringcars.Introducedthefour-wheelsteeringsystemcontrolstrategy.Pointsoutthefour-wheelsteer
2、ingsystemcontroltechnologyfacesdifficulties,andprospectsthetrendofitsdevelopment.Keywords:four-wheelsteering;Steeringcharacteristics;Workingprinciple;Control;Development;1.IntroductionWithmodernroadtrafficsystemandthedevelopmentofmodernautomobiletechnology,peopleonthecar'ssteeringcontrol
3、performanceanddrivingstabilityrequirementisincreasingdaybyday.Asthemosteffectiveimprovevehiclehandlingperformanceofakindofactivechassiscontroltechnology-four-wheelsteeringtechnology.Inthe1980sbeganincarsgetapplication,andasthemodernautomobileindustryandcontinuousdevelopment.Carfour-wheel
4、steeringmeansinturn,therearcarcanberelativetobodyactivesteering,thatthecarcanbeuptofourwheelsrole.Toimprovethecarturnedtomaneuverability,handlingstabilityanddrivingsafety.2.Thecar'ssteeringfour-wheelsteering2.14wscarsand2wssteeringprocessanalysisOrdinarytwowheelsteeringcannotonlythefront
5、cararounditsownwheelrotationandrelativetobodydeflectionaroundtheprecision,thenwheelrotationandnotonlydeflection.Whenthedriverturnedthesteeringwheel,frontwheelsteering,changeddirectionsfacefronttyre,producedatransverseforce,throughthefrontwheeleffectonbody,makethebodyyawingandproducecentr
6、ifugalforce,therearwheelscornering,11producedchangedirection,participateinthesportscarto.Andtherearandfrontcar4wsas,canrotationcanalsodeflection.Whenthedriverturnedthesteeringwheel,frontandrearwheels,thatcaralmostatthesametimetochangedirection,realizesteeringmovement.Inturn,the2wscarbefo
7、reactivesteeringwheelrotationjustmakespassivesteering.Obviously,2wscarsinsteeringprocessfromthesteeringwheelrotationtorearwheelsteeringmovementinbetweentheexistenceofcertainlagtime.Thisphaselag2wsautomobilesteeringcharacteristicsmaketheservosexbecomespoor,andthatthecarste
