Patent ID: 6212459
Filing Date: 2001-04-03
Classification: B60T

Abstract:
A motor vehicle brake system having a brake pedal, a brake booster, a master brake cylinder and an electronically regulatable brake unit arranged between the master brake cylinder and wheel brakes of the vehicle, the brake system comprising:an electronic control unit adjusting a brake pressure in the wheel brakes independently of a preliminary pressure existing at an output of the master brake cylinder;wherein the electronic control unit senses a course of a pedal operating value from the brake booster directly proportional to a pedal force applied by a driver via a brake pedal; andfurther wherein when a predetermined threshold value of the pedal operating value has been reached, the brake pressure in the wheel brakes is generated via the electronically regulatable brake unit such that over a course of the deceleration, a raised deceleration gradient is obtained with a further rise of the pedal operating value in a sense of an increase of a brake booster ratio.