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1、附录附录A英文文献原文Transmission OverviewTransmissiongearbox'sfunctiontheengine'soutputrotationalspeedishigh,themaximumworkrateandthemaximumtorqueappearsincertainrotationalspeedarea.Inordertodisplayengine'soptimumperformance,musthaveasetofvariablespeedgear,iscoordinatedtheenginetherotational
2、speedandwheel'sactualmovingvelocity.Thetransmissiongearboxmayintheautomobiletravelprocess,hasthedifferentgearratiobetweentheengineandthewheel,throughshiftsgearsmaycausetheengineworkunderitsbestpowerperformancecondition.Transmissiongearbox'strendofdevelopmentismoreandmorecomplex,thea
3、utomaticityisalsogettinghigherandhigher,theautomatictransmissionwillbefuturemainstream.AutomotiveTransmission'smissionistotransferpower,andintheprocessofdynamicchangeinthetransmissiongearratioinordertoadjustorchangethecharacteristicsoftheengine,atthesametimethroughthetransmissiontoa
4、dapttodifferentdrivingrequirements.Thisshowsthatthetransmissionlinesintheautomotivetransmissionplaysacrucialrole.Withtherapiddevelopmentofscienceandtechnology,people'scarisgettinghigherandhigherperformancerequirements,vehicleperformance,life,energyconsumption,suchasvibrationandnoise
5、transmissiondependslargelyontheperformance,itisnecessarytoattachimportancetothestudyoftransmission.Transmissiongearbox'spatterntheautomobileautomatictransmissioncommontohavethreepatterns:Respectivelyishydraulicautomatictransmissiongearbox(AT),machinerysteplessautomatictransmission(C
6、VT),electricallycontrolledmachineryautomatictransmission(AMT).Atpresentwhatappliesismostwidespreadis,ATbecomesautomatictransmission'spronounnearly.ATisbythefluidstrengthtorqueconverter,theplanetgearandthehydrauliccontrolsystemiscomposed,combinesthewaythroughthefluidstrengthtransmiss
7、ionandthegeartorealizethespeedchangebendingmoment.Andthefluidstrengthtorqueconverteristhemostimportantpart,itbycomponentsandsoonpumppulley,turbinewheelandguidepulleyiscomposed,hasatthesametimethetransmissiontorqueandthemeetingandpartingfunction.AndATcompare,CVThasomittedcomplexandth
8、eunwieldygearcombin