The function of any transmission is transferring engine power to the driveshaft and rear wheels (or axle halfshafts and front wheels in a front-wheel-drive vehicle).

• 任何变速器的功能，都是把发动机的动力传输给驱动轴和后轮上，（或者，传输给前轮驱动车辆的前轮和半驱动轴上）。