Method for operating a braking system for a motor vehicle, corresponding braking system for a motor vehicle and computer program product
AssigneeAudi AG
InventorsTobias Brok, Thomas Hanisch
Life of this patent
Estimating the term…
Abstract
A method for operating a braking system for a motor vehicle, which has a service brake device with at least one wheel brake and a brake pressure applied to the wheel brake for generating a braking force acting on a brake disc of the wheel brake is adjusted at least temporarily depending on a setting of an operating element. A condition of a coating of a brake disc of the wheel brake is determined based on the brake pressure applied to the wheel brake and a deceleration of the motor vehicle resulting therefrom.
Claims19
A method for operating a braking system for a motor vehicle, comprising:
- operating the braking system;
- applying a brake pressure to a wheel brake to generate a braking force acting on a brake disc of the wheel brake;
- at least temporarily adjusting the brake pressure depending on a setting of an operating element;
- and
- determining a condition of a coating of the brake disc of the wheel brake on the basis of the brake pressure applied to the wheel brake and a deceleration of the motor vehicle resulting therefrom by using a pressure/deceleration characteristic curve stored in a control unit of the braking system, wherein the pressure/deceleration characteristic curve relates different brake pressures to decelerations that occur with the coating, and wherein a defect in the coating is detected when the deceleration deviates from a deceleration target value obtained from the pressure/deceleration characteristic curve for the brake pressure.
A braking system for a motor vehicle, comprising;
- a service brake device with at least one wheel brake configured to adjust a brake pressure applied to the at least one wheel brake for generating a braking force acting on a brake disc of the at least one wheel brake at least temporarily depending on a setting of an operating element,
- wherein the braking system is further provided and designed to determine a condition of a coating of the brake disc of the at least one wheel brake on the basis of the brake pressure applied to the at least one wheel brake and a deceleration of the motor vehicle resulting therefrom by using a pressure/deceleration characteristic curve stored in a control unit of the braking system, wherein the pressure/deceleration characteristic curve relates different brake pressures to decelerations that occur with the coating, and wherein a defect in the coating is detected when the deceleration deviates from a deceleration target value obtained from the pressure/deceleration characteristic curve for the brake pressure.
A computer program product comprising a processor and a non-transitory computer readable medium containing instructions configured to cause the processor to perform the steps of:
- operating a braking system;
- applying a brake pressure to a wheel brake to generate a braking force acting on a brake disc of the wheel brake;
- at least temporarily adjusting the brake pressure depending on a setting of an operating element;
- and
- determining a condition of a coating of the brake disc of the wheel brake on the basis of the brake pressure applied to the wheel brake and a deceleration of the motor vehicle resulting therefrom by using a pressure/deceleration characteristic curve stored in a control unit of the braking system, wherein the pressure/deceleration characteristic curve relates different brake pressures to decelerations that occur with the coating, and wherein a defect in the coating is detected when the deceleration deviates from a deceleration target value obtained from the pressure/deceleration characteristic curve for the brake pressure.
Dependencies are inferred from the claim text.