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ID:334809
大小:47.50 KB
页数:7页
时间:2017-07-25
《自动变速器换档规律的研究外文文献翻译、汽车车辆类外文翻译、中英文翻译》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、附录theresearchofamtshiftingschedulesVehicularAutomaticTransmissioncanbedividedintothreetypes:AutomaticTransmission(AT),AutomatedMechanicalTransmission(AMT)andContinuouslyVariableTransmission(CVT).AMThasbecomeakindoftransmissionthatisfullofpotentiality,duetoitshightransferefficiency,
2、lowcostandeasinesstomanufacture.TheresearchonAMTshiftingperformanceiskeytechnologyinthedeveloping.ShiftingperformancedirectlyinfluencethemarketcompetitionandindustrializationofAMT.AMThasgoodmarketexpectation,butduringtheshiftingprocedure,thepowermustbecutoffwhichcausesthepoorshifti
3、ngperformancethanATandCVT.Onlythroughimprovingtheshiftingperformancecanthecommercialcompetencebeestablished.Sothevirtualimportantthingistofindthewaytoimproveshiftingperformance.ThedevelopmentofAMTcanbedividedintothreephases:semi-automatic,automaticandintelligent.ThetwomajorpartofAM
4、Tare:thehardwareincludingthemasteredobject,executor,sensorsandTCU;andthesoftwareperformingthecontrolstrategy.TheperformanceofATshiftinfluencesgreatlytheperformanceofthevehicle.SotheresearchonatshiftqualityisanimportantprobleminthedomainofATresearching.ShiftqualitycontrolofATisaccom
5、plishedbyelectronicandhydraulicsystem.Toshiftsmoothly,accordingtherealtimethrottlevalveopeningandvehiclespeedsignal,thecontrollersendselectronicsignalstocontroloilpressurechangingcurveoftheapplyingelements.thispaperanalyzesandresearchdetailedshiftqualitycontrolsystem,theanalyzingmo
6、delofshiftingprocessandpressurechangingcurveoftheapplyingelementsFirstlythispapersummarizestheexistingevaluatedquotaofshiftquality,andfullyanalyzesandintroducestheexistingcontrolmannerofATshiftquality.Tomeettheneedsofresearchofvehiclestartingandtherealtimecontrolofshift,thispaperpu
7、tsforwardasimplifiedmodelofengine-torqueandadynamicsmodelofATshiftingprocess.Throughtheapplyingoftheestablishedmodel,thispaperfullyanalyzestheprocessoftheATshifting.ThispaperdraftstheproperoilpressurechangingcurveoftheapplyingelementswhichcanimprovetheATshiftquality,andgivesthemate
8、rialcalculatedmethodsofthe
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