SafetyReliabilityAnalysisofaDualredundancySteerbywireSystem

SafetyReliabilityAnalysisofaDualredundancySteerbywireSystem.pdf
Steer-by-wire(SBW)systemhasnomechanicallinkagebetweensteeringwheelandsteeringgear.Itcanimprovethehandingstability,passivesafetyandcomfortofvehicles.However,thefailureofSBWsystemcancausehazarddrivingsituations,sohowtoensureitssafetyhasalwaysbeenoneoftherestrictingfactors.Thepaperwillcomeupwithadual-redundancyarchitectureofSBWsystem,whichconsistsoffourdual-redundancysubsystems,theyaredual-redundancypowersupplysubsystem,dual-redundancysteer-ingwheelsubsystem,dual-redundancysteeringgearsubsystemanddual-redundancycommunicationnetworksubsystem.FaultTreeAnal-ysis(FTA)andMonteCarlomethodareusedtobuildthemathematicalmodelforcalculatingthehardwarereliabilityindexesofthedu-al-redundancySBWsystemproposed,thereliabilityindexesincludedegreeofreliability,meantimebetweenfailures(MTBF)andfailurerate.Comparetheseindexeswithexistinginternationalstandardstocheckifitissafeenough.Thencomparedual-redundancySBWsystemwithpart-redundancySBWsystemandbasicSBWsystemtoindicatethatonlybyusingwholeredundancycanSBWsystemgetenoughsafetyreliability.TheseaspectsareimplementedcomputationallywithMatlab.
作者：WangTongChenXiCaiZhikaiMiJunnanLianXiaomin
作者单位：DepartmentAutomotiveEngineering,TsinghuaUniversity
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：steer-by-wiresystem  safetyreliability  systemredundancy
在线出版日期：2020年7月9日
基金项目：
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SafetyReliabilityAnalysisofaDualredundancySteerbywireSystem.pdf

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