Method of operating a brake system for a motor vehicle and corresponding brake system
AssigneeAudi AG
InventorKrister Petersen
Life of this patent
Estimating the term…
Abstract
A method of operating a brake system for a motor vehicle, the brake system has a parking brake device and actuating the parking brake device for generating a parking braking force on a wheel of the motor vehicle is only permitted if a speed value falls below a speed threshold value. As such, the speed value is determined from a measured speed value corresponding at least temporarily to a speed of the motor vehicle. If the measured speed value falls below the speed value, the speed value is made to track the measured speed value with a speed gradient limited to a speed gradient limit value.
Claims20
A method of operating a brake system for a motor vehicle, wherein the brake system has a parking brake device, wherein the method comprises:
- permitting actuation of the parking brake device for generating a parking braking force on a wheel of the motor vehicle only if a speed value falls below a speed threshold value,
- determining the speed value from a measured speed value corresponding at least temporarily to a speed of the motor vehicle,
- while the measured speed value is not below the speed value, using the measured speed value as the speed value, and
- upon determining that the measured speed value falls below the speed value, triggering having the speed value track the measured speed value with a speed gradient limited to a speed gradient limit value.
A brake system for a motor vehicle, wherein the brake system comprises a parking brake device and wherein the brake system is configured to permit actuating the parking brake device for generating a parking braking force on a wheel of the motor vehicle only if a speed value falls below a speed threshold value,
- wherein the brake system is provided and designed to determine the speed value from a measured speed value corresponding at least temporarily to a speed of the motor vehicle,
- wherein the brake system is configured to use the measured value as the speed value while the measured speed value is not below the speed value, and
- wherein the brake system is configured to, if the measured speed value falls below the speed value, have the speed value track the measured speed value with a speed gradient limited to a speed gradient limit value.
Dependencies are inferred from the claim text.