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时间:2020-03-25
《机电控制带式无级变速器的改进PID速比控制与仿真.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、机床与液压Dec.2013HydromechatronicsEngineeringVol_41No.24DOI:10.3969/j.issn.100l-3881.2013.24.002AnImprovedPIDAlgorithmfortheSpeedRatioControlandSimulationofElectro—MechanicalContinuouslyVariableTransmissionCHENGYue“,,WUJunyi,LIXin,J.a.KeyLaboratoryofManuf
2、actureandTestTechniquesforAutomobileParts,MinistryofEducation;b.SchoolofVehicleEngineering,ChongqingUniversityofTechnology,Chongqing400054,China;2.ChongqingAcademyofScienceandTechnology,Chongqing401123,ChinaAbstract:Structuralcharacteristicsandworking
3、principleofthenovelElectro-MechanicalContinu-ouslyVariableTransmission(EM-CVT)areintroduced,Mathematicalmodelsofspeedratio,clampingforceandadjustable.speedmotorareestablishedandEM-CVTspeedratiocentrelstrat—egyisresearched.Aimingatthesho~comingofgenera
4、lPIDratiocontrolalgorithmforelectro。mechanicalcontinuouslyvariabletransmission.theconventionalPIDspeedratiocentrelalgorithmisimprovedandanovelPIDspeedratiocontrolalgorithmissimulatedandanalyzedinEM-CVTcomputermodelwhichisestablishedinMatlab/Simulink.T
5、hetargetspeedratioofEM—CVTsim—ulatehighspeedratiochangerate(1argedeviation)andzerospeedratiochangerate(1ittledevi-ation)byvaryingstep.TheresultsprovethattheimprovedPIDspeedratiocontrolalgorithmpos。sessesgoodcontrolperformanceandtheactualratioavoidssho
6、ck,hysteresisandovershootef_ficiently.Keywords:electro.mechanicalcontinuouslyvariabletransmission,speedratiocontrol,PIDEM.CVTwhichhasapureElectro—Mechanicalcorn-1.IntroductionDonentandcontrolmethodabandonsthelowefficienthydraulicsystem,Itsimplifiesthe
7、structurewithaThisarticlewillintroduceanovelelectro.me—significantdegreeanditscosthasfallenbymorethanchanicalcontinuouslyvariabletransmissionwhichis30%.Also.EM—CVTimprovesthereliabilityanddifferentfromtraditionalcontinuouslyvariabletrans—theefficiency
8、ofthewholedrivetrain.missioninstructure,workingprincipleandcontrolThisarticleanalyzesthestructureandprinciplemethod.ResearchshowsthatinametalbeltCVT’s0fEM.CVT.establishesspeedratiomodel,clampingenergyloss,thehydraulicsystemaccountsforaboutf0rc
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