Patent ID: 8776665

Claim:
A brake system with a master cylinder associated with a brake booster comprising an actuator piston controlled by a motor of the brake booster and acting on a primary piston of the master cylinder by means of a reaction disk against which the primary piston rests and for a safety operation, a hydraulic actuator connected to a control rod actuated by a brake pedal, characterized in that: the actuator piston ( 220 ) combined with an auxiliary piston ( 115 ) in order to interact with the reaction disk ( 240 ) on a side of the master cylinder ( 100 ), is guided in a bore ( 202 ) of a body ( 201 ) of the brake booster ( 200 ), and an adapting shim ( 116 ) supported by the auxiliary piston ( 115 ) is designed to receive a rounded end ( 111 a ) of a rear rod ( 111 ) secured to the primary piston ( 110 ) of the master cylinder ( 100 ).