초록 ▼

A hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits. The hydraulic assembly comprises a pressure generator for generating a central hydraulic pressure for the brake circuits independently of the driver at least in

A hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits. The hydraulic assembly comprises a pressure generator for generating a central hydraulic pressure for the brake circuits independently of the driver at least in the case of service braking initiated by the driver. Furthermore, at least one pressure adjusting device is provided for adjusting for each individual brake circuit the central hydraulic pressure that is generated by the pressure generator independently of the driver.

대표청구항 ▼

1. Hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits, the hydraulic assembly comprising: a pressure generator for generating a central hydraulic pressure for the brake circuits independently of a driver at least d

1. Hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits, the hydraulic assembly comprising: a pressure generator for generating a central hydraulic pressure for the brake circuits independently of a driver at least during a service braking operation initiated by a driver; andat least one pressure adjuster for adjusting for each individual brake circuit the central hydraulic pressure generated by the pressure generator independently of the driver, wherein the at least one pressure adjuster comprises a first valve device, the first valve device comprising at least one adjusting valve, which is adjustable at least between an open valve position and a closed valve position, and a first non-return valve, which is connected in parallel to the at least one adjusting valve in a way that in the closed valve position enables an overflow of the at least one adjusting valve in the direction of the wheel brakes, wherein the hydraulic assembly further includes a changeover device for selectively coupling the wheel brakes to either the hydraulic pressure generated independently of a driver or a hydraulic pressure generated by a driver, wherein the changeover device comprises one 3/2-way valve per brake circuit. 2. Electrohydraulic vehicle brake system comprising the hydraulic assembly according to claim 1. 3. Hydraulic assembly according to claim 1, wherein the first valve device is electrically actuable in order to adjust a hydraulic pressure corresponding to an actuating state. 4. Hydraulic assembly according to claim 3, wherein the first valve device is electrically actuable by means of pulse width modulation, wherein the actuating state is adjustable by means of the pulse width. 5. Regenerative vehicle brake system comprising the hydraulic assembly according to claim 1. 6. Hydraulic assembly according to claim 1, wherein the pressure generator comprises an inlet port for hydraulic fluid and an outlet port for hydraulic fluid. 7. Hydraulic assembly according to claim 6, wherein the inlet port and the outlet port are configured to be fluidically coupled to one another, wherein a second valve device is provided in an intake line, which opens out into the inlet port. 8. Hydraulic assembly according to claim 7, wherein the second valve device comprises a second non-return valve, which opens in the event of an intake of hydraulic fluid by the pressure generator and closes in the event of a discharge of hydraulic fluid by the pressure generator. 9. Hydraulic assembly according to claim 6, wherein the inlet port is configured to be coupled to an unpressurized hydraulic fluid reservoir. 10. Hydraulic assembly according to claim 1, wherein the pressure generator comprises a hydraulic chamber for receiving hydraulic fluid as well as a plunger piston movable within the hydraulic chamber for generating the central hydraulic pressure independently of the driver, wherein the brake circuits are configured to be supplied with hydraulic fluid from the hydraulic chamber. 11. Hydraulic assembly according to claim 10, further comprising an electric motor for actuating the plunger piston. 12. Hydraulic assembly according to claim 11, wherein the at least one pressure adjuster comprises a first control unit for the electric motor. 13. Hydraulic assembly according to claim 11, wherein the electric motor is disposed paraxially relative to the plunger piston. 14. Hydraulic assembly according to claim 11, wherein a gear is provided between the electric motor and the pressure generator. 15. Hydraulic assembly according to claim 1, further comprising a third valve device for adjusting the brake pressure for each individual wheel or wheel group in multiplex mode, wherein the third valve device is disposed between the at least one pressure adjuster and the wheel brakes. 16. Hydraulic assembly according to claim 1, wherein the changeover device is electrically actuable and in a non-actuated state couples the wheel brakes to a driver-actuable master cylinder and in an actuated state couples the wheel brakes to the pressure generator. 17. Hydraulic assembly according to claim 15, wherein the third valve device comprises precisely one valve per wheel brake. 18. Hydraulic assembly according to claim 16, wherein at least the changeover device, the at least one pressure adjuster and the pressure generator form an independently manipulable first subassembly. 19. Hydraulic assembly according to claim 18, wherein the driver-actuable master cylinder is part of the independently manipulable first subassembly. 20. Hydraulic assembly according to claim 19, further comprising a third valve device for carrying out braking interventions at the wheel brakes independently of the driver, wherein the third valve device is disposed in the brake circuits between the at least one pressure adjuster and the wheel brakes. 21. Hydraulic assembly according to claim 20, wherein the third valve device is part of an independently manipulable second subassembly. 22. Hydraulic assembly according to claim 20, wherein the third valve device is part of the independently manipulable first subassembly. 23. Hydraulic assembly according to claim 20, wherein the third valve device comprises exclusively non-controllable shut-off valves. 24. Hydraulic assembly according to claim 20, wherein the pressure generator is configured to be coupled to at least one hydraulic fluid return line associated with the third valve device and has a fluid-receiving functionality for hydraulic fluid flowing back through the hydraulic fluid return line. 25. Hydraulic assembly according to claim 24, wherein the pressure generator comprises an inlet port for hydraulic fluid and an outlet port for hydraulic fluid, wherein the inlet port and the outlet port are configured to be fluidically coupled to one another, wherein the inlet port is coupled to at least one hydraulic fluid return line by means of an intake line and a second valve device disposed in the intake line. 26. Hydraulic assembly according to claim 24, wherein the at least one hydraulic fluid return line is separate from an unpressurized hydraulic fluid reservoir. 27. Hydraulic assembly according to claim 24, further comprising at least one pressure accumulator, which is configured to be coupled to the at least one hydraulic fluid return line and is configured to store hydraulic fluid fed back through the at least one hydraulic fluid return line. 28. Hydraulic assembly according to claim 27, wherein the at least one pressure accumulator is provided in the at least one hydraulic fluid return line between the pressure generator and the third valve device. 29. Hydraulic assembly according to claim 12, further comprising a second control unit for carrying out braking interventions at the wheel brakes independently of the driver, wherein the second control unit is designed to trigger the pressure generator in order to build up a brake pressure independently of the driver. 30. Hydraulic assembly according to claim 29, wherein the first control unit is part of an independently manipulable first subassembly and the second control unit is part of an independently manipulable second subassembly. 31. Hydraulic assembly according to claim 29, wherein the first control unit and the second control unit are designed as a common control unit that is part of an independently manipulable first subassembly. 32. Hydraulic assembly according to claim 29, further comprising a third control unit for a regenerative braking mode, wherein the third control unit is designed to trigger the pressure generator in the regenerative braking mode in order to build up a brake pressure independently of the driver. 33. Hydraulic assembly according to claim 32, further comprising a pedal reaction simulation unit, which in the regenerative braking mode is actuable by means of a hydraulic pressure generated by a driver. 34. Hydraulic assembly according to claim 33, wherein the pedal reaction simulation unit is part of a first subassembly. 35. Hydraulic assembly according to claim 33, wherein the pedal reaction simulation unit and a driver-actuable master cylinder form an independently manipulable third subassembly. 36. Hydraulic assembly for a vehicle brake system comprising at least two brake circuits and wheel brakes associated with the brake circuits, the hydraulic assembly comprising: a pressure generator for generating a central hydraulic pressure for the brake circuits independently of a driver at least during a service braking operation initiated by a driver; andat least one pressure adjuster for adjusting for each individual brake circuit the central hydraulic pressure generated by the pressure generator independently of the driver, wherein the at least one pressure adjuster comprises a first valve device, the first valve device comprising at least one adjusting valve, which is adjustable at least between an open valve position and a closed valve position, and a first non-return valve, which is connected in parallel to the at least one adjusting valve in a way that in the closed valve position enables an overflow of the at least one adjusting valve in the direction of the wheel brakes, wherein the hydraulic assembly further includes a changeover device for selectively coupling the wheel brakes to either the hydraulic pressure generated independently of a driver or a hydraulic pressure generated by a driver, wherein the changeover device comprises two 2/2-way valves per brake circuit, the changeover device being provided separately from the pressure adjuster.