Patent ID: 9180859
Filing Date: 2015-11-10
Classification: B60K,B60W,F16H,Y02T,Y10T

Abstract:
1. A motor vehicle having: a prime mover; first and second groups of one or more wheels; and a driveline to connect the prime mover to the first and second groups of one or more wheels such that the first group of one or more wheels and not the second group may be driven by the prime mover when the driveline is in a first mode of operation and both the first and second group of one or more wheels may be driven by the prime mover when the driveline is in a second mode of operation, the driveline including an auxiliary portion comprising a first releasable torque transmitting means, a prop shaft and a second releasable torque transmitting means, the first releasable torque transmitting means being operable to connect a first end of the prop shaft to the prime mover, the second releasable torque transmitting means being operable to connect a second end of the prop shaft to the second group of one or more wheels, the vehicle further comprising a control unit operable to control the first and second torque transmitting means to switch the driveline between the first and second modes of operation, wherein when the vehicle is in the first mode and the prop shaft is disconnected from both the prime mover and said second group of one or more wheels the control unit is operable automatically to connect the prop shaft to only one selected from amongst the prime mover and the second group of one or more wheels by the first or second releasable torque transmitting means responsive to a value of a temperature parameter corresponding to an operating temperature of the vehicle.