Patent ID: 7681962
Filing Date: 2010-03-23
Classification: B60T,Y10S

Abstract:
1. A method for estimating master cylinder pressure during brake apply of a brake system of a vehicle, wherein the brake system includes a brake pedal, and wherein the method comprises: a) determining a first master cylinder pressure from brake pedal position during brake apply; b) determining a second master cylinder pressure from vehicle deceleration during brake apply; c) estimating the master cylinder pressure during brake apply to be equal to the first master cylinder pressure when the vehicle deceleration is below a predetermined deceleration value; d) estimating the master cylinder pressure during brake apply to be equal to a value which is less than the first master cylinder pressure and greater than or equal to the second master cylinder pressure when the vehicle deceleration is at or above the predetermined deceleration value; and e) using at least the estimated master cylinder pressure during brake apply to control the vehicle.