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1、ABSTRACTAlongwiththerapidgrowthofvehiclepopulation,theenergyandenvironmentproblemsbecometworestrictionsforownautomotiveindustry.Todealwiththeseproblems,moreandmorecarcompanieshaveputtheirresearchfocusonelectriccars.However,limitedbybatterytechnology,thepureelectricvehicleshavesomedisadvantages,such
2、ashighcostandshortdrivingrange,whichinfluenttheindustrializationofelectriccars.Asthevehiclewhichcanprolongdrivingrange,extended-rangevehiclecanbetheintergraded-vehicleforpureelectricvehicle,sorecentlyitgraduallybecomesthenewresearchfocus.Accordingtothedesigndemandofsomecompany,thepurposeofthispaper
3、istomatchtheparameters,preliminarilyworkoutthecontrolstrategyanddotheoptimizationofsomeextended-rangeelectricmiddlebus.Firstly,basedonthestructureofextended-rangeelectricvehicleanddesigngoalofdynamicandeconomicperformance,dothematchofparameters(torqueandpowerofgenerator,capacityandvoltageofpowerbat
4、teriesandmainparametersofextended-rangeunit)ofpowersystem.Then,basedontheresultsofmatching,preliminarilyworkoutthecontrolstrategyofvehicle,includingDrivingControlStrategy(forwardandbackward),DrivingAntiskidControlStrategyandExtended-RangeControlStrategy.Accordingtoparametersofvehicleandpowersystem,
5、buildthesimulationmodelinCRUISEandSIMULINK.Dothedynamic,economicandextended-rangecontrolsimulationinmodel.AlsotestthecontroleffectsofDrivingAntiskidControlintwotypicalconditions.Allsimulationsshowthatparametersofmatchingarerightandthecontrolstrategiesarefeasible.Intheend,basedontheantcolonyalgorith
6、mdoestheoptimizationforthebesteconomicperformance.Inordertotesttheeffectofoptimization,dothetestingsimulation.ItshowsthatenergylossinNEDCreduce8.27%,whichmeanstheeconomicperformanceofvehicleisobviousimproved.Keywords:Extended-Rangeelectricmiddlebus;Parametersmatching;Controlstrategy;OptimizeIII万方数据
7、目录第一章绪论....................................................................................................................11.1研究背景和意义........................................................................