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控制式差动无级变速器的优化设计.docx

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控制式差动无级变速器的优化设计 Abstract Controlleddifferentialcontinuouslyvariabletransmission(CVT)isakindoftransmissionsystemwithinfinitegearratios.Ithasexcellentperformanceandwideapplicationprospects.However,duetothecomplexityanddiversityofitsstructureandcontrolsystem,theoptimizationdesignoftheCVTstillremainsachallenge.ThispaperprovidesacomprehensivereviewoftherecentresearchprogressontheoptimizationdesignofthecontrolleddifferentialCVT.Variousoptimizationmethodsarediscussed,includingmathematicalmodeling,simulationanalysis,andexperimentalverification.TheimpactofdifferentdesignparametersontheperformanceoftheCVTisalsoanalyzedindetail.Throughtheanalysisoftheexistingresearch,somesuggestionsforthefutureoptimizationdesignofthecontrolleddifferentialCVTareproposed. 1.Introduction Controlleddifferentialcontinuouslyvariabletransmission(CVT)isatransmissionsystemthatcancontinuouslychangethegearratio,andithasbeenwidelyusedinvehicles,windturbines,androbotics.TheworkingprincipleofthecontrolleddifferentialCVTistoadjustthepositionandspeedofthecontactpointbetweenthetwopulleys,therebychangingtheeffectivediameterofthepulleysandtheoutputtorqueandspeedofthetransmission.Duetothecontinuousvariationofthegearratio,theCVTcanprovidebetterfueleconomy,smootheracceleration,andsuperiordrivingexperiencecomparedtotraditionalautomatictransmissions. However,thedesignofthecontrolleddifferentialCVTisverychallengingduetoitscomplexstructureandcontrolsystem.Theoptimizationofthedesignparameters,suchasthegeometryofthepulleys,thematerialofthebelt,andthecontrolstrategy,requiresasystematicapproachthatconsidersvariousfactorsandconstraints.Inrecentyears,manyresearchershavestudiedtheoptimizationdesignofthecontrolleddifferentialCVTusingdifferentmethods.Inthispaper,weprovideareviewoftherecentprogressintheoptimizationdesignofthecontrolleddifferentialCVT. 2.MathematicalModeling MathematicalmodelingisanessentialstepintheoptimizationdesignofthecontrolleddifferentialCVT.ThemodelingincludesbothkinematicanddynamiccharacteristicsoftheCVT,