Method for actuating a hydraulic brake system in a motor vehicle

1. A method for actuating a hydraulic brake system in a motor vehicle, the motor vehicle including wheels, the method comprising:

generating a wheel-specific hydraulic brake pressure for each of the wheels of the motor vehicle; and

adjusting the wheel-specific brake pressure for each of the wheels as a function of data concerning the longitudinal and/or transverse dynamics of the motor vehicle ascertained by sensors, to guide the motor vehicle in a desired track, wherein data from a driving environment sensor system for detecting the instantaneous lateral distance of the motor vehicle from the desired track is taken into account in the adjusting of the wheel-specific brake pressure;

wherein the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include vehicle lateral acceleration values.

2. The method of claim 1 , wherein the method is performed during straight-ahead driving of the motor vehicle.

3. The method of claim 1 , wherein the driving environment sensor system for determining the instantaneous lateral distance of the motor vehicle from the desired track includes video sensors.

4. The method of claim 1 , wherein the driving environment sensor system for determining the instantaneous lateral distance of the motor vehicle from the desired track includes radar sensors.

5. The method of claim 1 , wherein only a brake-pressure reduction is implemented in adjusting the wheel-specific brake pressure.

6. The method of claim 1 , wherein the method is implemented with a brake-pressure control below the initial brake pressure in a brake master cylinder of the brake system.

7. The method of claim 1 , wherein the method is implemented with a brake-pressure control above the initial brake pressure in a brake master cylinder of the brake system.

8. The method of claim 1 , wherein the desired track is determined from the information of a navigation system.

9. The method of claim 1 , wherein the desired track is determined from the lateral distance of the motor vehicle to a lateral edge of the roadway.

10. The method as recited in claim 1 , wherein the generating and the adjusting occur during cornering by the motor vehicle.

11. The method as recited in claim 1 , wherein the sensors include wheel speed sensors, a lateral acceleration sensor, and a steering-angle sensor, and the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include data ascertained by the wheel speed sensors, data ascertained by the lateral acceleration sensor, and data ascertained by the steering-angle sensor.

12. The method as recited in claim 1 , further comprising:

determining the desired track from a stored road map.

13. A regulating unit for actuating a hydraulic brake system in a motor vehicle, the motor vehicle including wheels, the regulating unit comprising:

a control device configured to perform the following:

generating a wheel-specific hydraulic brake pressure to for each of the wheels of the motor vehicle; and

adjusting the wheel-specific brake pressure for each of the wheels as a function of data concerning the longitudinal and/or transverse dynamics of the motor vehicle ascertained by sensors, to guide the motor vehicle in a desired track, wherein data from a driving environment sensor system for detecting the instantaneous lateral distance of the motor vehicle from the desired track is taken into account in the adjusting of the wheel-specific brake pressure;

wherein the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include vehicle lateral acceleration values.

14. The regulating unit as recited in claim 13 , wherein the generating and the adjusting occur during cornering by the motor vehicle.

15. The regulating unit as recited in claim 13 , wherein the sensors include wheel speed sensors, a lateral acceleration sensor, and a steering-angle sensor, and the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include data ascertained by the wheel speed sensors, data ascertained by the lateral acceleration sensor, and data ascertained by the steering-angle sensor.

16. The regulating unit as recited in claim 13 , wherein the desired track is determined from a stored road map.

17. A brake system in a vehicle, comprising:

regulating unit for actuating a hydraulic brake system in a motor vehicle, the motor vehicle including wheels, the regulating unit including a control device configured to perform the following:

generating a wheel-specific hydraulic brake pressure for each of the wheels of the motor vehicle; and

adjusting the wheel-specific brake pressure for each of the wheels as a function of data concerning the longitudinal and/or transverse dynamics of the motor vehicle ascertained by sensors, to guide the motor vehicle in a desired track, wherein data from a driving environment sensor system for detecting the instantaneous lateral distance of the motor vehicle from the desired track is taken into account in the adjusting of the wheel-specific brake pressure;

wherein the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include vehicle lateral acceleration values.

18. The brake system as recited in claim 17 , wherein the generating and the adjusting occur during cornering by the motor vehicle.

19. The brake system as recited in claim 17 , wherein the sensors include wheel speed sensors, a lateral acceleration sensor, and a steering-angle sensor, and the data concerning the longitudinal and/or transverse dynamics of the motor vehicle include data ascertained by the wheel speed sensors, data ascertained by the lateral acceleration sensor, and data ascertained by the steering-angle sensor.

20. The brake system as recited in claim 17 , wherein the desired track is determined from a stored road map.