Method for performing a function check on an electromechanical brake device
AssigneeRobert Bosch GmbH
InventorsAndreas Englert, Tobias Putzer
Life of this patent
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Abstract
In the case of a method for performing a function check on an electromechanical brake device having at least one electric brake motor, the motor current is measured at the brake motor and compared with a calculated motor current, wherein an error signal is generated in the event of an inadmissibly high deviation.
Claims14
A method for operating an electromechanical brake device having at least one electric brake motor configured to generate a braking force in a vehicle, the method comprising:
- measuring a motor current of the at least one electric brake motor;
- comparing the measured motor current with a calculated motor current;
- generating an error signal in response to a deviation between the measured motor current the calculated motor current exceeding an error tolerance;
- and
- in response to the generation of the error signal, controlling the at least one electric brake motor until the motor comes to a standstill so as to build-up a maximal braking force of the electrometrical brake device in order to hold the vehicle in a lasting stationary state.
A control unit for performing a function check on an electromechanical brake device having at least one electric brake motor configured to generate a braking force in a vehicle, the control unit being configured to:
- measure a motor current of the at least one electric brake motor;
- compare the measured motor current with a calculated motor current;
- generate an error signal in response to a deviation between the measured motor current the calculated motor current exceeding an error tolerance;
- and
- in response to the generation of the error signal, controlling the at least one electric brake motor until the motor comes to a standstill so as to build-up a maximal braking force of the electrometrical brake device in order to hold the vehicle in a lasting stationary state.
A braking system in a vehicle, the braking system comprising:
- an electromechanical brake device having at least one electric brake motor configured to generate a braking force in the vehicle;
- and
- a control unit configured to control adjustable components of the braking system the control unit being further configured to:
- measure a motor current of the at least one electric brake motor;
- compare the measured motor current with a calculated motor current;
- and
- generate an error signal in response to a deviation between the measured motor current the calculated motor current exceeding an error tolerance.
Dependencies are inferred from the claim text.