Patent ID: 8177039

Claim:
Hydraulic vehicle brake system comprising: a brake pressure signal generator which can be activated by a brake activation device, wherein the brake pressure signal generator can be connected to wheel brakes of a vehicle via at least one hydraulic line and is composed of a master brake cylinder and a hydraulic booster which is connected upstream and which has a return flow chamber and a boosting chamber, a working piston arranged in the return flow chamber and the boosting chamber, a control piston, wherein the working piston is operatively connected in a force outputting direction to a master brake cylinder piston via an activation element, wherein a hydraulic pressure of a hydraulic pressure source can be applied to the hydraulic booster via an inlet for boosting braking force, wherein an outlet of the hydraulic booster is configured to be connected to a reservoir vessel, wherein the control piston has a plate-shaped actuation piston which is arranged thereon and which interacts with the working piston, and the control piston is guided in the working piston in such a way that, when the hydraulic booster is activated, two-stage throttling of a volume flow between the boosting chamber and the return flow chamber is made possible in order to build up pressure in the boosting chamber.