Patent ID: 6655754
Filing Date: 2003-12-02
Classification: B60L,B60T,B60W,Y02T

Abstract:
A vehicle brake system comprising:a brake demand input; a friction brake actuator for generating friction braking to be applied to one or more brakes on a vehicle; a sensor for determining kinematic acceleration of the vehicle; a database storing target accelerations as a function of the brake demand input and storing a brake related parameter that defines a relationship between the brake demand input and the friction braking; and a controller for controlling the friction brake actuator based on the brake demand input and the brake related parameter, said controller determining brake acceleration caused by the braking as a function of the sensed kinematic acceleration and determining a target acceleration from the database based on the brake demand input, said controller determining a brake acceleration error as the difference between the target acceleration and the brake acceleration, said controller further adjusting the brake related parameter to reduce the brake acceleration error by adjusting the braking generated by the friction brake actuator to compensate for brake feel variation.