OptimizationofHandlingPerformancebyVariableSteeringRatioControlStrategyforSteerbywireSystem

OptimizationofHandlingPerformancebyVariableSteeringRatioControlStrategyforSteerbywireSystem.pdf
Toimprovevehiclehandlingperformance,variablesteeringratiocontrolstrategyforasteer-by-wiresystemisproposed.Thesteeringratioiscompensatedbyacompensatingcoefficient,whichisanonlinearfunctionofvehiclelongitudinalspeed.Threedesignprinciplesbasedonratiolimitation,yawrategainandsteeringsensitivityarepresented.Quadrasticcostfunctionsofvehiclelateraldeviation,steeringangularspeed,lateralaccelerationandrollangleareintegratedasanobjectiveevaluationindex.Basedonthisevaluationindex,doublelane-changesimulationsareconductedtoobtaintheproposedrelationshipbetweensteeringratioandvehiclespeed.Totestandvalidatetheeffects,aseriesofcomparativesimulationexperimentsareconducted,includingstepinputtest,doublelane-changetest,weavetest,andcomprehensivedrivingmaneuver.Theresultsdemonstratethatcomparedwithaconventionalsteeringsystemwithfixedsteeringratio,theproposedsystemcannotonlyimprovevehicledirectionalresponseperformance,butalsoreducedriver'sworkloadincontrollingthevehicle.
作者：WUXiaodongLIWenqi
作者单位：ShanghaiJiaoTongUniversity
母体文献：2018中国汽车工程学会年会论文集
会议名称：2018中国汽车工程学会年会  
会议时间：2018年11月1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：steer-by-wire  variablesteeringratio  handlingperformance
在线出版日期：2021年9月26日
基金项目：
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OptimizationofHandlingPerformancebyVariableSteeringRatioControlStrategyforSteerbywireSystem.pdf

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