Patent ID: 6283240
Filing Date: 2001-09-04
Classification: B60K,B60L,B60T,B60W,F16H,Y02T,Y10S

Abstract:
A vehicle speed control system comprising:at least one driving device arranged to produce drive for a vehicle;at least one braking device arranged to produce braking of the vehicle;a vehicle speed sensor for measuring a speed of the vehicle;a speed controller communicating with said at least one driving device and said at least one braking device and producing a torque demand signal for one of a driving torque and a braking torque;a driver operated accelerator pedal communicating with the speed controller, the accelerator pedal having an associated accelerator pedal position sensor for producing a first signal dependent upon the position of the accelerator pedal and indicative of a demanded acceleration rate;a driver operated brake pedal communicating with the speed controller, the brake pedal having a brake pedal position sensor for producing a second signal dependant on the position of the brake pedal and indicative of a demanded deceleration rate;the speed controller controlling the driving device based on said first signal received from the accelerator pedal position sensor and controlling the braking device based on the second signal received from the brake pedal position sensor so as to produce via the torque demand signal the demanded acceleration and deceleration rates; andwherein the accelerator pedal has a range of accelerator positions, each of the accelerator positions having a target speed associated therewith, and for each of the accelerator positions the braking device and the driving device are actuated by the speed controller to bring the vehicle speed towards the target speed, and the brake pedal has a range of braking positions, each of the braking positions having a target deceleration rate associated therewith, and for each of the braking positions the braking device and the driving device are actuated by the speed controller to decelerate the vehicle at the associated target deceleration rate.