Method for providing the application force generated by a parking brake
AssigneeRobert Bosch GmbH
InventorsFrank Baehrle-Miller, Dieter Blattert, Tobias Putzer
Life of this patent
Estimating the term…
Abstract
In a method for providing the application force generated by a parking brake, which is at least partially generated by an electromechanical brake device having an electric brake motor, a retensioning process is terminated in the event that (i) the motor current exceeds a limit value or (ii) the rotational speed of the motor drops below a limit value.
Claims15
A method for providing an application force generated by a parking brake in a vehicle, the parking brake including at least an electromechanical brake device having an electric brake motor for generating at least a portion of the application force by pressing a brake piston against a brake disk the method comprising:
- performing a first tensioning process in which the electric brake motor is activated to press the brake piston;
- and
- initiating a retensioning process in which the electric brake motor is reactivated again following the first tensioning process, wherein the retensioning process is terminated if one of a rotational speed of the motor or a variable correlating with the rotational speed of the motor drops below an assigned specified limit value.
A control device for controlling an application force generated by a parking brake in a vehicle, the parking brake including at least an electromechanical brake device having an electric brake motor for generating at least a portion of the application force by pressing a brake piston against a brake disk, the control device comprising:
- a control unit including a processor configured to control the following:
- performing a first tensioning process in which the electric brake motor is activated to press the brake piston;
- and
- initiating a retensioning process in which the electric brake motor is reactivated again following the first tensioning process,
- wherein the processor is configured to terminate the retensioning process one of a current of the motor or a variable correlating with the current of the motor exceeds an assigned specified limit value, and
- wherein the processor is configured to terminate the retensioning process if one of a rotational speed of the motor or a variable correlating with the rotational speed of the motor drops below an assigned specified limit value.
A method for providing an application force generated by a parking brake in a vehicle, the parking brake including at least an electromechanical brake device having an electric brake motor for generating at least a portion of the application force by pressing a brake piston against a brake disk the method comprising:
- performing a first tensioning process in which the electric brake motor is activated to press the brake piston;
- and
- initiating a retensioning process in which the electric brake motor is reactivated again following the first tensioning process,
- wherein the retensioning process is terminated if a current of the motor or a variable correlating with the current of the motor exceeds an assigned specified limit value, and
- wherein the retensioning process is terminated if a rotational speed of the motor or a variable correlating with the rotational speed of the motor drops below an assigned specified limit value.
Dependencies are inferred from the claim text.