Patent ID: 6364434
Filing Date: 2002-04-02
Classification: B60L,B60T,B60W,Y02T,Y10S

Abstract:
A method of applying a braking torque to a vehicle when coasting, comprising the steps of:determining if a vehicle is coasting indicated by both a throttle and a brake pedal being released; applying a predetermined amount of coast braking torque to said vehicle responsive to a determination that the vehicle is coasting; setting a target speed equal to the vehicle speed at approximately the time that it is determined that the vehicle is coasting; and detecting a vehicle speed after said target speed is set and comparing said vehicle speed to said target speed and if said vehicle speed is greater than said target speed then incrementing said coast braking torque by a predetermined amount; wherein the coast braking torque is compared to a maximum coast braking torque limit and if the coast braking torque is not less than the maximum coast braking torque limit, then the step of incrementing the coast braking torque is bypassed.