机械专业毕业设计（论文）外文文献原稿和译文

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1、北京化工大学北方学院毕业设计（论文）——外文文献原稿和译文外文文献原稿和译文原稿MechanicalandRegenerativeBrakingIntegrationforaHybridElectricVehicleAbstractHybridelectricvehicletechnologyhasbecomeapreferredmethodfortheautomotiveindustrytoreduceenvironmentalimpactandfuelconsumptionoftheirvehicles.Hybridelectricvehiclesac

2、complishthesereductionsthroughtheuseofmultiplepropulsionsystems,namelyanelectricmotorandinternalcombustionengine,whichallowtheeliminationofidling,operationoftheinternalcombustionengineinamoreefficientmannerandtheuseofregenerativebraking.However,theaddedcostofthehybridelectricsyste

3、mhashinderedthesalesofthesevehicles.Amorecosteffectivedesignofanelectro-hydraulicbrakingsystemispresented.Thesystemelectro-mechanicallycontrolledtheboostforcecreatedbythebrakeboosterindependentlyofthedriverbrakingforceandwithadequatetimeresponse.Thesystemallowedfortheblendingofthe

4、mechanicalandregenerativebrakingtorquesinamannertransparenttothedriverandallowedforregenerativebrakingtobeconductedefficiently.Asystematicdesignprocesswasfollowed,withemphasisplacedondemonstratingconceptualdesignfeasibilityandpreliminarydesignfunctionalityusingvirtualandphysicalpr

5、ototyping.Thevirtualandphysicalprototypeswerethenusedincombinationasapowerfultooltovalidateanddevelopthesystem.Theroleofprototypinginthedesignprocessispresentedanddiscussed.15北京化工大学北方学院毕业设计（论文）——外文文献原稿和译文Throughtheexperiencesgainedbytheauthorduringthedesignprocess,itisrecommendedt

6、hatstudentscreatephysicalprototypestoenhancetheireducationalexperience.Theseexperiencesareevidentthroughoutthethesispresented.1.1ModernHybridElectricVehiclesWithrisinggaspricesandtheoverwhelmingconcernfortheenvironment,consumersandthegovernmenthaveforcedtheautomotiveindustrytostar

7、tproducingmorefuelefficientvehicleswithlessenvironmentalimpact.Onepromisingmethodthatiscurrentlybeingimplementedisthehybridelectricvehicle.Hybridvehiclesaredefinedasvehiclesthathavetwoormorepowersources[25].Therearealargenumberofpossiblevariations,butthemostcommonlayoutofhybridveh

8、iclestodaycombinesthepowerofanint