并联液压混合动力装载机的系统配置和能源控制策略的研究

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1、ResearchonthesystemconfigurationandenergycontrolstrategyforparallelhydraulichybridloaderSunHui,,JingJunqingJiangsuXuzhouConstructionMachineryResearchInstitute,Jiangsu,ChinaAccepted30October2009.Availableonline22November2009.http://dx.doi.org/10.1016/j.autcon.2009.10.006,HowtoCiteo

2、rLinkUsingDOIPermissions&ReprintsAbstractAimedatthefrequentstarts/stopsoperationcharacteristicsoftheloader,anenergysavingschemewithparallelhydraulichybridsystemisproposedtoregenerateandreusethebrakingenergynormallylostinaconventionalloader.Hydraulichybridsystemisdesignedandsizedto

3、capturebrakingenergyfromnormal–moderatebrakingoperatingmodeswhileensureshybridsystemworkinginhigherefficiencyregion.Accordingtothehigherpowerdensitycharacteristicofhydraulichybridsystem,theregenerativebrakingstrategyandenergyreusestrategyaredesignedtocoordinateallthepowertraincomp

4、onentsinanoptimalmannerwhilesatisfyingperformanceconstraintsofloader.Energycontrollerusinglogicthresholdapproachisbuiltuptocontrolthedynamictransitionsamongthevariousoperationmodes.Simulationandexperimentalresultsshowtheparallelhydraulichybridloader(PHHL)effectivelyrecoveredandreu

5、sedthebrakingenergy,improvedtheworkingperformanceofloaderandeffectivelyreducedthefuelconsumption.KeywordsLoader;Hydraulichybridsystem;Brakingenergyregeneration;Energymanagement;Hydraulicpump/motor1.IntroductionWiththerisingconcerninaglobalscaleenvironmentalissue,energysavinginauto

6、mobilesisaveryimportantsubject[1] and [2].Off-roadvehicleshavebeenpaidmuchattentioninthefieldofenergysavingandenvironmentprotection,forthereasonoftheirlargeapplicationquantities,highfuelconsumptionandbademissions[3].Loaderhasthecharacteristicsoffrequentstarts/stopsandlargervehicle

7、weightwhichgeneratedsignificantamountsofbrakingenergy.Usually,thispartofenergyiswastedbythefrictionalbrakingsystemwhichcausedtheenergylossandheatgenerationinthesystem.Therefore,thebrakingenergyrecoveryandreuseisapromisingwaytoimprovefueleconomyandworkingperformanceofoff-roadvehicl

8、es[4] and [5].Thereisawealthoflit