ZL50装载机自动变速操纵系统控制策略的研究

24220042TransactionsofBeijingInstituteofTechnologyVol.24No.2Feb.2004:100120645(2004)0220113204ZL50,,,(,100081):ZL50Z,,,,;Z,,,Z:;ZL50;:U270114:AResearchofControlStrategyforZL50LoaderwithElectronicControlAutomaticShiftOperatingSystemZHAIYong,DUXiao2ming,CHENHui2yan,LIUHai2ou(SchoolofMechanicalandVehicularEngineering,BeijingInstituteofTechnology,Beijing100081,China)Abstract:TheoverallarrangementofautomaticshiftelectroniccontrolsystemforZL50loaderisintroduced.Controlstrategyoftheloader’sautomaticshiftisdesignedthroughananalysisoftheloader’sworkingcourse.Man2machineconversationmulti2modecontrolstrategyisadoptedtoadapttothecomplexstatesofworkingoftheloader,andthefunctionsofDSSanddirectreversalarepresented.Differentshiftschedulesaredesignedbasedonwhetherthedrivingpumpisworking.Theexactnessofcontrollogicisprovedbybenchtests,andelectroniccontrolsystemmakestheshiftingoperationsimple,reducingthedriver’sintensityofwork.Keywords:automaticshift;ZL50loader;electroniccontrolsystem:20030331:(1969-),,,E2mail:[e-mail].,L,[1]L,,,;,[2],,L,,L1YZX160DYZX160DZL50,1L,,,4,3L,,,L1YZX160DFig.1SchemeofYZX160Dgearbox2Intel80C196KB,,,[3,4]L2L(ECU)(N,+,-,,,H,DSS7)L2Fig.2Schemeofelectroniccontrolsystem3311,[5],:L:LVILTLL,30%L,,,L,,L312,,L,,,L,,2,,L,L,,,L,(DSS)L,DSS,(),1,L,,,DSSL,L,,L:,,,L:;,L,,,,L313,[3]L(Av),AvL,41124L,,,,,L,,ZL50,,L,,,50%60%,L,,L,34L3()Fig.3Shiftscheme(drivingpumpworking)4()Fig.4Shiftscheme(drivingpumpnotworking)314:L,,,:DSSL,,L,L,,L,L,L,DSSL,,+,-L,,;,,ECU;,,L4ZL50,L,,,L512L()ne=1800römin,(14),1,,L,,n212n2=372römin,,1,2L,ne=1800römin,15112:ZL50512Fig.5Shiftingfromfirsttosecondgear,n1,n2L2,n1,n2,,2,L6L,,L,,,,,0,L6Fig.6Shiftingcourseofdirectreversing,L5,,,,,L,,1(DSS)L,,L,[6],,,L,L:[1].ZL50[J].,2002(3):24-26.LiuLi.ResearchofZL50loaderwithelectroniccontrolautomaticshiftsystem[J].ConstructionMachineryandEquipment,2002(3):24-26.(inChinese)[2].[D].:,2002.LiuLi.Applicationandresearchofvehicleelectroniccontroloperatingtechnology[D].Beijing:SchoolofMechanicalandVehicularEngineering,BeijingInstituteofTechnology,2002.(inChinese)[3].[M].:,1992.DingHuarong.Theauto2shiftinvehicle[M].Beijing:BeijingInstituteofTechnologyPress,1992.(inChinese)[4].[M].:,1993.GeAnlin.Theoryanddesignofvehicleautomaticshift[M].Beijing:ChinaMachinePress,1993.(inChinese)[5].[M].:,1995.GaoHuhai.Loadermachinery[M].Beijing:MetallurgicalIndustryPress,1995.(inChinese)[6].[J].,2000(8):948-950.ZhaoDingxuan.Dynamicsanalyseofhydraulic2mechanicaltransmissionsysteminconstructionvehicle[J].ChinaMechanicalEngineering,2000(8):948-950.(inChinese)[7]MinowaToshimichi,KimuraHiroshi.Smoothgearshiftcontrolsystemusingestimatedtroque[R].SAE941013,1994.61124