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1、JournalofBeijingInstituteofTechnology,2013,Vol.22,No.2Analysisofvehiclepowertraindynamicperformance1,苣12LUOGuo鄄liang(罗国良),摇ZHANGFu鄄jun(张付军),摇YUANHao鄄jie(袁豪杰)(1.SchoolofMechanicalEngineering,BeijingInstituteofTechnology,Beijing100081,China;2.BeijingResearchInstituteofMechanical&ElectricalTechn
2、ology,Beijing100074,China)Abstract:Tostudythevehicledynamiccharacteristicsundertypicalcycleconditions,asteady鄄statesimulationmodeloftheengineinGT鄄Powerisestablishedandverifiedwithenginebenchtestdata.Adynamicmodeloftheengineisthenestablished.Aco鄄simulationwiththeenginedynamicmodelinGT鄄Powerand
3、thevehicletransmissionmodelinAMESimisconductedbasedonthetechnologyofHLA/RTI.Theparameterchangesofvehiclepowertrainintheacceleratingprocessof0-32km/h,andvehicletypicalcycleconditionsarestudied.Theinfluencelawsofthetypicalparametersinfluen鄄cingvehicledynamiccharacteristicsareobtained,andanewapp
4、roachofimprovingvehicledynamiccharacteristicsisproposed.Theresultsshowthatthevehiclepowertraindynamicmodelcansimu鄄late,analyzeandpredictdynamicchangesofvehicleinactualoperatingconditionsandguidepower鄄trainmatchingandoptimization.Keywords:powertrain;dynamiccharacteristics;numericalsimulation;e
5、xperimentalresearchCLCnumber:TK422摇摇Documentcode:A摇摇ArticleID:1004鄄0579(2013)02鄄0171鄄08摇摇Vehicle蒺saccelerationperformanceandfuelzationofthedesign.Thedynamicsimulationeconomyareimportantindicatorstomeasuremethodisofgreatsignificancetoacceleratethecombatcapabilityandviabilityfortrackedvehi鄄vehi
6、cledevelopmentcycleandreducedevelop鄄cles.Withactualoperatingandloadconditions,mentcost.vehiclepowertrainsystemworksunderdynamic1摇Theoreticalanalysisofthedy鄄operatingconditions.Researchshowsthatwhennamicmodelthevehicleisrunningontheroad,theengineloadandspeedandotherparametersarealsoina摇摇Inthev
7、ehicledevelopmentresearchandthestateofflux,and66%to80%ofthetotaloperat鄄vehiclematchingprocess,itisoftennecessaryto[1]ingconditionsaredynamicconditions.Foranalyzeandcalculatetheperformanceofpower鄄trackedvehicles,theproportionofdynamicoper鄄trai