Method for operating a braking system for a motor vehicle and corresponding braking system

Patent metadata

Field	Value
Publication number	US-12240430-B2
Application number	US-202318348668-A
Country	US
Kind code	B2
Filing date	Jul 7, 2023
Priority date	Jul 26, 2022
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A method for operating a braking system for a motor vehicle, including a service brake unit and the service brake unit is activated to generate a brake force on a wheel axle of the motor vehicle at least temporarily as a function of a setting of an operating element. The generation of the brake force is performed using a calibration data set stored in a control unit of the braking system. An identifier stored in the operating element is transmitted to the control unit and used for a compatibility check. If the compatibility check is successful, a configuration of the operating element takes place and a generic data set stored in the control unit is used as the calibration data set and an operating element-specific data set stored in the operating element is transmitted to the control unit and used as a calibration data set after the transmission.

First claim

The invention claimed is:

1. A method for operating a braking system for a motor vehicle, wherein the braking system includes a service brake unit and the service brake unit is activated to generate a brake force on a wheel axle of the motor vehicle at least temporarily as a function of a setting of an operating element, wherein the generation of the brake force as a function of the setting of the operating element is performed using a calibration data set stored in a control unit of the braking system, wherein an identifier stored in the operating element is transmitted to the control unit and used there for a compatibility check and, if the compatibility check is successful, a configuration of the operating element takes place in that a generic data set stored in the control unit is used as the calibration data set and an operating element-specific data set stored in the operating element is transmitted to the control unit and used as a calibration data set after the transmission.

2. The method as claimed in claim 1 , wherein a registration number stored in the operating element is transmitted to the control unit and compared there to a stored registration number, wherein the configuration of the operating element is performed in the event of a difference between the transmitted registration number and the registration number stored in the control unit.

3. The method as claimed in claim 1 , wherein the operating element-specific data set is used in that the calibration data set is overwritten by the operating element-specific data set or a switch is made from the calibration data set to the operating element-specific data set.

4. The method as claimed in claim 1 , wherein a warning signal is generated during the compatibility check and/or during the configuration.

5. The method as claimed claim 1 , wherein if the compatibility check fails, an error signal is generated and/or training of the operating element is carried out.

6. The method as claimed in claim 1 , wherein the warning signal and/or the error signal are suppressed over a defined period of time.

7. The method as claimed in claim 1 , wherein the warning signal and/or the error signal are displayed by means of a display device.

8. The method as claimed in claim 1 , wherein, in the context of the compatibility check, the identifier is used as an input variable for a characteristic diagram or a table, which includes a compatibility parameter as an output variable, wherein the compatibility check is classified as successful with a first value of the ascertained compatibility parameter and is classified as failed with a second value.

9. The method as claimed in claim 1 , wherein the control unit is a first control unit and, in addition to the first control unit, a second control unit is provided, which is operated analogously to the first control unit.

10. A braking system for a motor vehicle, comprising: a service brake unit and the service brake unit is activated to generate a brake force on a wheel axis of the motor vehicle at least temporarily as a function of a setting of an operating element, wherein the braking system is provided and designed to perform the generation of the brake force as a function of the setting of the operating element using a calibration data set stored in a control unit of the braking system, wherein an identifier stored in the operating element is transmitted to the control unit and is used there for a compatibility check and, if the compatibility check is successful, the operating element is configured in that a generic data set stored in the control unit is used as the calibration data set and an operating element-specific data set stored in the operating element is transmitted to the control unit and is used as the calibration data set after the transmission.

11. The method as claimed in claim 2 , wherein the operating element-specific data set is used in that the calibration data set is overwritten by the operating element-specific data set or a switch is made from the calibration data set to the operating element-specific data set.

12. The method as claimed in claim 2 , wherein a warning signal is generated during the compatibility check and/or during the configuration.

13. The method as claimed in claim 3 , wherein a warning signal is generated during the compatibility check and/or during the configuration.

14. The method as claimed claim 2 , wherein if the compatibility check fails, an error signal is generated and/or training of the operating element is carried out.

15. The method as claimed claim 3 , wherein if the compatibility check fails, an error signal is generated and/or training of the operating element is carried out.

16. The method as claimed claim 4 , wherein if the compatibility check fails, an error signal is generated and/or training of the operating element is carried out.

17. The method as claimed in claim 2 , wherein the warning signal and/or the error signal are suppressed over a defined period of time.

18. The method as claimed in claim 3 , wherein the warning signal and/or the error signal are suppressed over a defined period of time.

19. The method as claimed in claim 4 , wherein the warning signal and/or the error signal are suppressed over a defined period of time.

20. The method as claimed in claim 5 , wherein the warning signal and/or the error signal are suppressed over a defined period of time.

Assignees

• Audi Ag

Inventors

• Förster Kilian
• Müller Frank

Classifications

• B60T2270/406

  Test-mode; Self-diagnosis · CPC title

• B60Y2306/15

  Failure diagnostics · CPC title

• B60Y2400/81

  Braking systems · CPC title

• B60Y2400/90

  Driver alarms · CPC title

• B60T13/74

  with electrical assistance or drive · CPC title