6-Recent Advances in Control-Oriented Modeling of Automotive Power Train Dynamics

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1、IEEE/ASMETRANSACTIONSONMECHATRONICS,VOL.11,NO.5,OCTOBER2006513RecentAdvancesinControl-OrientedModelingofAutomotivePowerTrainDynamicsJoskoDeurˇ,Member,IEEE,JoskoPetriˇc,JahanAsgari,andDavorHrovat´,SeniorMember,IEEEAbstractThispaperpresentsasurveyoftherecentresearchkaE

2、quivalenthalf-shaftstiffness.resultsoftheauthorsinthefieldofmodelingofautomotivepowerkebEquivalentstiffnessoftheengineblocktrainsystemsandcomponents.Thegoaloftheresearchistopro-mountsinthepitchdirection.posesimpleandaccuratepowertrainmodelsforcontrollerdesignLTire–roa

3、dcontactpatchlength.andtoproposecomputationallyefficientsimulations.Themod-elingincludestypicalpowertraincomponentssuchaselectronicLfEquivalentfluidinertialengthofthetorquethrottle,SIengine,torqueconverter,planetarygearset,wetclutch,converter.differential,halfshaft,and

4、tire.Experimentalmodelvalidationre-MEnginetorque.sultsarepresented.MbEngineloadtorque.IndexTermsControl,dynamics,modeling,powertrain,roadpManifoldairpressure.vehicles.papp,pAppliedclutchpressure(s).rEffectivetireradius.RGasconstant.NOMENCLATUREsOperatoroftheLaplacetr

5、ansform.aInnerclutchdiameter.A0Cross-sectionalflowareaofthetorquecon-Si,t,sCharacteristictorqueconverterareacon-stants.verter.tTime.bOuterclutchdiameter.baEquivalenthalf-shaftdamping.TaAmbienttemperature;dcmotorarmaturetimeconstant.bii,bit,bti,bttDampingcoefficientsoft

6、hesecond-orderTManifoldairtemperature;clutchtorque.torqueconvertermodel(calculatedfromthetorqueconverterstaticcurves).TdEnginecombustiondelay.bebEquivalentdampingoftheengineblockTpNondominanttimeconstantofthesecond-ordertorqueconvertermodel.mountsinthepitchdirection.

7、f0Steady-statefunctionsofthetorquecon-TrEnginerunnerairtemperature.verter.TvTimeconstantduetothetorqueconverterfluidinertiaeffect.FTireforce.vWheelcenterspeed.FappAppliedclutchforce.FzNormalforcetotire.vrTire–roadrelativespeed(slipspeed).VManifoldvolume.gSpeedratiooft

8、hesecondplanetarygear.g(vr)Slidingtirefrictionfunction(frictionpoten-VfTorqueconverterfluidvelocity.tialfunction).WiThrottleair-mass