Patent ID: 7921763
Filing Date: 2011-04-12
Classification: B60T

Abstract:
1. Brake control system for a motor vehicle comprising a brake pedal ( 1 ), a brake booster ( 4 ) which comprises a front chamber ( 40 ) and a rear chamber ( 41 ) which are separated by a booster piston ( 42 ), said booster ( 4 ) supplying an amplified braking command dependent on the pressure difference between the two said chambers, a brake master cylinder ( 5 ) receiving the amplified braking commands from the brake booster ( 4 ), characterized in that it comprises a simulator ( 3 ) coupled pneumatically or hydraulically to the piston ( 42 ) of the brake booster ( 4 ), said simulator ( 3 ) receiving at least one braking command from the brake pedal ( 1 ) and in return establishing or controlling a pressure difference between the front chamber ( 40 ) and the rear chamber ( 41 ) of the brake booster so as to control the movement of the piston ( 42 ), characterized in that it comprises a pneumatic servomotor for controlling a pneumatic brake booster or brake servo, characterized in that said control servomotor comprises a space ( 8 ) comprising a first bore ( 89 ) in which there slides a three-way valve piston ( 30 ) equipped with a three-way valve capable of: placing the rear chamber ( or of isolating the rear chamber ( or of placing the rear chamber (