An automatic transmission having a driver operated control to provide increased acceleration

摘要

An automatic transmission 11, preferably a continuously variable transmission (CVT), has an electronic control unit 12 and sensor means to provide signals indicative of the speed of the engine 10 and road. A driver operable control 17, which is preferably mounted on the steering wheel, reduces the ratio of the CVT to a ratio resulting in an engine speed close to that at which peak engine torque is produced (fig 2).