摘要变速器，用于转变发动机曲轴的转矩及转速，以适应汽车在起步、加速、行驶以及克服各种道路阻碍等不同行驶条件下对驱动车轮牵引力及车速不同要求的需要。汽车变速器，是一套用于来协调发动机的转速和车轮的实际行驶速度的变速装置，用于发挥发动机的最佳性能。变速器可以在汽车行驶过程中，在发动机和车轮之间产生不同的变速比，通过换挡可以使发动机工作在其最佳的动力性能状态下。变速器的发展趋势是越来越复杂，自动化程度也越来越高，自动变速器将是未来的主流。变速器可以在汽车行驶过程中，在发动机和车轮之间产生不同的变速比，通过换挡可以使发动机工作在其最佳的动力性能状态下。通过对目前各种汽车变速器的性能、技术特点进行比较，分析汽车变速器市场的现状及对汽车变速器市场的展望。关键词：变速器；结构；组成；原理；发展前景ABSTRACTTransmission,usedtochangethetorqueandspeedoftheenginecrankshaft,inordertoadapttothecaratthestart,acceleration,roadtrafficandtoovercometheobstacleofdifferentdrivingconditionsandspeedofthedrivewheeltractionrequirementsofthedifferentneeds.Automobiletransmission,isusedtocoordinatethespeedoftheengineandthewheelsoftheactualspeedofthetransmissiondevice,usedtoplaythebestperformanceofengine.Thetransmissioncanbeintherunningprocessoftheautomobile,theenginebetweenthewheelandproducedifferenttransmissionratio,byshiftingcanmaketheengineworkinthebeststateofdynamicperformance.Thetransmissionisthedevelopmenttrendofincreasinglycomplex,increasinglyhighdegreeofautomation,automatictransmissionwillbethemainstreamoffuture.Thetransmissioncanbeintherunningprocessoftheautomobile,theenginebetweenthewheelandproducedifferenttransmissionratio,byshiftingcanmaketheengineworkinthebeststateofdynamicperformance.Basedonthevariousperformanceofautomobiletransmission,techniquecharacteristicsarecompared,analysisofAutomobileGearboxMarketSituationandmarketprospectofautomotivetransmission.KeyWords：Transmission;composition;structure;principle;developmentprospect目录1..............................................................................................................................................................前言.............................................................................................................12汽车变速器结构特点..............................................................................22.1良好的行驶性能。..............................................22.2操纵简单。....................................................22.3高行车安全性。................................................22.4降低废气排放。................................................32.5可以延长发动机和传动系的使用寿命。............................32.6提高生产率。..................................................32.7提高了汽车的平顺性。..........................................33汽车变速器的分类....................................................43.1手动变速器(MT)................................................43.2自动变速器(AT)................................................73.3手动/自动变速器..............................................143.4无级变速器(CVT)..............................................153.5按传动比分类.................................................153.6按操纵方式划分为强制操纵式、自动操纵式、半自动操纵式.........154变速器的功用......................................................................................175变速器的组成................................................................................
