The present invention starts from a vehicle hydraulic brake system comprising a master cylinder (2) actuatable by a hydraulic power booster (1) and containing a working chamber (12, 21), to which latter wheel brakes (36, 37, 38, 39) are connected by way of valves (40, 41) controllable by a slip cont
The present invention starts from a vehicle hydraulic brake system comprising a master cylinder (2) actuatable by a hydraulic power booster (1) and containing a working chamber (12, 21), to which latter wheel brakes (36, 37, 38, 39) are connected by way of valves (40, 41) controllable by a slip control electronics. On control action, pressure fluid can be taken from the wheel brakes (36, 37, 38, 39) through the valves (40, 41) and can be replenished out of the presser chamber (5) of the hydraulic power booster (1) by way of the working chamber of the hydraulic power booster by way of the working chamber (12, 21). On communication of the working chamber (12, 21) with the pressure chamber (5) of the hydraulic power booster (1), simultaneously, a resetting sleeve (11) is pressurized in the brake\s release direction which is penetrated by a master cylinder piston (10) and which serves to limit the stroke of the brake pedal (6). In particular with a view to simplifying the design of the braking pressure generator (1, 2), it is proposed that an annular housing chamber (15), which is confined by the end face of the resetting sleeve (11) that is remote from the working chamber (12), is normally isolated from an unpressurized supply reservoir (18) and is in communication to said supply reservoir (18) exclusively during brake slip control.
대표청구항▼
A vehicle hydraulic brake system actuated by a brake pedal operable in brake application and brake release directions, said system comprising a master cylinder actuatable by a hydraulic power booster and containing a working chamber, to which wheel brakes are connected by way of valve means controll
A vehicle hydraulic brake system actuated by a brake pedal operable in brake application and brake release directions, said system comprising a master cylinder actuatable by a hydraulic power booster and containing a working chamber, to which wheel brakes are connected by way of valve means controllable by a slip control electronics, in which system in response to a slip control action signal pressure fluid can be taken from the wheel brakes through the valve means and can be replenished out of a pressure chamber of the hydraulic power booster by way of a connection between the pressure chamber and the working chamber, a resetting sleeve slidably mounted in said working chamber, said sleeve surrounding and being penetrated by a master cylinder piston and second valve means responsive to said signal and connecting said pressure chamber with said working chamber, said working chamber pressurizing an end face of the resetting sleeve that faces the working chamber and thereby enabling displacement of the resetting sleeve in opposition to the movement of the master cylinder piston, a stop means mounted on said master cylinder which is movable into engagement with said resetting sleeve and which serves to limit the stroke of the brake pedal, wherein an annular housing chamber (15) is confined by an end face of the resetting sleeve (11) that is remote from the working chamber (12), and wherein said annular chamber (15) is isolated from an unpressurized supply reservoir (18) by way of a valve (17) connected between said annular chamber (15) and said supply reservoir (18) which is actuated by said master cylinder piston during braking and wherein said annular chamber (15) is in communication with said supply reservoir (18) exclusively during brake slip control by way of third valve means (33) responsive to slip control.
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이 특허에 인용된 특허 (3)
Belart Juan (Walldorf DEX) Burgdorf Jochen (Offenbach-Rumpenheim DEX) Kircher Dieter (Frankfurt am Main DEX) Weise Lutz (Mainz DEX) Bleckmann Hans-Wilhelm (Obermoerlen DEX), Arrangement for controlling the pressure in brake actuating cylinders of a vehicle.
Belart Juan (Walldorf DEX) Burgdorf Jochen (Neugasse DEX) Kircher Dieter (Frankfurt am Main DEX) Weise Lutz (Mainz DEX), Pressure control arrangement for vehicle braking system with antiskid control equipment.
Belart Juan (Walldorf DEX) Burgdorf Jochen (Offenbach DEX) Kircher Dieter (Frankfurt am Main DEX) Bleckmann Hans-Wilhelm (Obermoerlen DEX) Weise Lutz (Mainz DEX), Pressure controlling arrangement for use in a vehicle brake system.
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