微型车转向沉重、制动跑偏与侧滑问题研究

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1、Y85655a势巍晕嫩密缎——攀控代礴学哥墨廑交通戈謦工程硕士学位论文微型车转向沉重、制动跑偏与侧滑问题研究Analysisandresolvetotheproblemofsteeringheavilybrakingdepartureandbrakingsideslipinamicrocar学位申请人导师姓名及职称工程领域名称：论文提交日期：何朝兵邵毅明教授邹军高级工程师交通运输工程。型兰丝里基璺摘要AbstractSteeringstabilization，returncapabilityandbrakingcapabilityhavebeenthemostimportantguarante

2、eallthetime，whichalsoinfluencetothewholeperformanceofvehicle．Inthispaper,thecauseofsteeringheavily,weakretumcapability,brakingdepartureandbrakingglideWaSanalyzedbasedintheory．amicrocarwhichWaSmadeinCHAN-ANwastaken醛studyobject，accordingtoproblemthatsteeringheavily，weakreturncapability,brakingdepartur

3、eandbrakingglideWaSfoundinthiscar,amethodoftheoryanalysisjoiningwithtestcompareWaSmadeusetoresolvethisproblem，andtheproblemwaseliminateatlast．Differentefficiencydirectionmachinecombinationwithdifferentfrictionmomentacrossstraightlypole，establishingthreegrouptrialscheme，bycomparingthesethreeschemeaft

4、ertest，whichreplacingupperefficiencydirectionmachineandacrossstraightlypolewhichfrictionmomentaccordingwithregulatecouldimprovesteeringstabilizationandretulTlcapability,andthecafafterimprovementcouldsatisfiedwiththeleavefactoryrequire．PressureinbothsidebrakingsystemvittaofthisCarWaSequalwhiletherewa

5、sgreatdefferencyamongbrakingmomentofbothsidewhendynamicbrakeorstaticdynamicWaSdoing，anddistributequotietyamongmomentbetweenfront·rearaxeswaStoosmall，accordingtothosetrials．So，thatleftsidemomentwadgreaterthanrightsidewasthedirectcauseofbrakingdepartureandbrakingglideinthisCar．Byimprovingthequalityofd

6、etentassemblymadeinfactory,insuringdetentassemblyaccordwiththerequireoftechniquecondition，brakingdepartureWasremoved．Byminishthediameterofrearaxesbrakingsub-pumppistontoaugmentdistributequotietyamongmomentbetweenfi'ont-refitaxes，toadvancesynchronizationclingquotiety,toenhanceabilityofresistsideslip，

7、brakingsideslipWasresolved．Moreover,throughthreemouthmadtrialof8000km，theCarwhichWaSimprovednlflwell，theproblemabovewerenomoreaDpear．Keyword：bf●kll·■d●■●r翻艄’；bmkWmsidewaysteeringheavily；steeringreturn