MULTI-RANGE TRANSMISSIONS

摘要

A multi-range transmission having a first output element connectable to a first clutch in a torque transmitting path of a first range and a second output element connectable by a second clutch in a torque transmitting path of a second range and in which the speed of the first and second elements vary inversely so as to rotate synchronously at a range change condition and comprising synchronicity sensing means to sense when said elements are rotating synchronously, first clutch operating means to engage the second clutch when the first and second elements are synchronous, torque adjustement means to adjust the torque transmitted by the second clutch to a predetermined value relative to the torque transmitted by the first clutch at synchronicity or at a predetermined speed difference prior to synchronicity and second clutch operating means to disengage the first clutch when the torque transmitted by the second clutch equals said predetermined value.