Vehicle employing multi-plate wet clutch to engage four wheel drive via auxiliary driveshaft

摘要

A vehicle 100 comprising: prime mover means 111; a first group of one or more wheels 112,13; a second group of two or more wheels 114,115; and a driveline 105 to connect the engine 111 to the wheels 112,13,114,115 such that the front wheels 112,13 are driven in a first mode of operation and the rear wheels 114,115 are additionally driven in a second mode of operation, the driveline 105 including an auxiliary driveshaft 123 and drive means 125 operable to connect the rear wheels 114,115 to the auxiliary driveshaft 123 when the driveline 105 transitions between the first and second modes of operation, the drive means having 125: an input portion 127IN; a plurality of output portions 126L,126R each arranged to provide torque to a different wheel of the second group of wheels 114,115; a single releasable torque transmitting means 127 operable to releasably connect the input portion 127IN to the output portions 126L,126R and to vary a proportion of the torque that is transmitted from the input portion 127IN to the output portions 126L,126R; and a differential 129 arranged to allow at least two wheels of the second group of wheels 114,115 to rotate at different speeds.