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1、20I02ndInternationalAsiaConferenceonInformaticsinControl,AutomationandRoboticsResearchontheEnergy-savingPotentialityofElectro-hydraulicPowerSteeringSystemBasedonEnergyFlowZHURenxueGAOLanfangLIXuezhiHangzhouWanxiangPolytechnic,MechanincalEngineeringDepartment,HangzhouWanxian
2、gKeyLaboratoryofFluidPowerChangshuInstituteofTechnology,Polytechnic,Hangzhou,ChinaTransmissionandControl,Changshu,ChinaE-mail:ZhejiangUniversityE-mail:llixuezhi@163.comHangzhou,Chinaredapple6294@sina.comE-mail:zrxzhj@163.comAbstract-Thedevelopmentanddesignofnewenergy-saving
3、(PulseWidthModulation)voltageforthemotor,sothatthesystemofelectro-hydraulicpowersteering(EHPS)hasextensivemotorwillproducethecorrespondingspeedtodrivethegearapplicationprospect.EHPSsystemisanalyzedbyusingenergypump,whichwilloutputhigh-pressureoilwiththeflowmethod,systemmode
4、lbasedonenergycostisestablished,andcorrespondingflowrateandpressure.Thepressureoilentersrelevantcomputesimulationisperformed.Testsarecarriedoutonintothepowercylinderontheracktopushthepistonwhichthehardware-in-the-loop(HIL)bench.Theresultsshowedthatgeneratestheappropriatepow
5、er.systemvoltagesupply,PWMdutycycle,pumpcapability,tierodforce,andsteeringratioaredifferentdegreeimpactonenergycost.Thisstudywillprovideatheoreticalreferenceandpractice......f...~::::r-':!????????~~_jguidancefordevelopinganddesigningenergy-savingEHPSsystem."',d:1,/""flJ::'
6、.'Y::IndexTerms-electro-hydraulicpowersteering;energyflow;f----'"Ienergysaving;simulationtestsI.PREFACEAutomobileelectro-hydraulicpowersteering(EHPS)systemcanproducepowerwhilethehydraulicpumpisdrivenbythemotor.Throughthecontrolofmotor,therequiredFigureIEHPSSystemStructureFl
7、owchartsteeringspeedcanbeachievedtoprovidethenecessarysteeringpower.ComparedwiththetraditionalhydraulicInordertofacilitatetheenergyanalysis,thesystemispowersteering(HPS)system,itcangreatlyreducethepowerdividedintothemechanicalmodule,thehydraulicmodule,thedemand,saveenergy,a
8、ndkeepallthebasicfeaturesofthemotormoduleandthecontrollermodule.Themechanicalhydra
