Patent ID: 6176336
Filing Date: 2001-01-23
Classification: B60K,B60L,B60T,B60W,Y02T

Abstract:
A drive system for a vehicle having a steerable wheel, the system comprising wheel slip measuring means for measuring a negative slip rate of said steerable wheel, drive means for driving said steerable wheel, and control means arranged to receive signals from said wheel slip measuring means, and to control the drive means to increase the driving torque to the steerable wheel if the negative slip rate of the steerable wheel is greater than a desired negative slip rate, wherein the system includes two steerable wheels and drive means for measuring the negative slip rate is arranged to independent drive, each of said steerable wheels, the wheel slip measuring means being arranged to measure a negative slip rate of each of said steerable wheels, and the control means being arranged to increase the drive to either of said steerable wheels if its negative slip rate is greater than said desired negative slip rate.