Brake-motor control unit, braking system for a vehicle having an electric brake motor, and method for the control of the brake-motor control unit
AssigneeRobert Bosch GmbH
InventorsPeter Rebholz-Goldmann, Steffen Zechmeister, Toni Frenzel
Life of this patent
Estimating the term…
Abstract
A brake motor control device for control of an electric brake motor of an electromechanical braking device includes a connection unit configured to be connected to an auxiliary control unit for controlling the electric brake motor in an event of a fault of the brake motor control device. The electric brake motor is configured to displace a brake piston against a brake disc.
Claims19
A brake motor control device for control of an electric brake motor of an electromechanical braking device associated with the brake motor control device, the brake motor control device comprising:
- an auxiliary control unit configured to control said electric brake motor in an event of a fault of the associated brake motor control device;
- a connection unit configured to connect said auxiliary control unit to the electric brake motor only in the event of the fault;
- and
- a microcontroller connected via an enabling line to the connection unit, the microcontroller configured to enable the connection unit to connect said auxiliary control unit to the electric brake motor,
- wherein the electric brake motor is configured to displace a brake piston against a brake disc.
A braking system for a vehicle with an electromechanical braking device, comprising:
- a wheel braking device including an electric brake motor configured to displace a brake piston against a brake disc;
- and
- a brake motor control device associated with and configured to control said electric brake motor, the brake motor control device including;
- an auxiliary control unit configured to control the electric brake motor in an event of a fault of the associated brake motor control device;
- a connection unit configured to connect said auxiliary control unit to the electric brake motor only in the event of the fault;
- and
- a microcontroller connected via an enabling line to the connection unit, the microcontroller configured to enable the connection unit to connect said auxiliary control unit to the electric brake motor.
A method for controlling a brake motor control device comprising:
- operating a brake motor control device to control an electric brake motor of an electromechanical braking device associated with the brake motor control device;
- operating a microcontroller connected via an enabling line to a connection unit of the brake motor control device to enable the connection unit to connect to an auxiliary control unit only in an event of a fault of the associated brake motor control device;
- and
- operating the auxiliary control unit to take over control of the electric brake motor of the electromechanical braking device in the event of the fault of the associated brake motor control device,
- wherein the fault includes a fault in a microcontroller of the brake motor control device or a standard driver unit, and
- wherein the electric brake motor is configured to displace a brake piston against a brake disc.
A braking system for a vehicle with an electromechanical braking device, comprising:
- a wheel braking device including an electric brake motor configured to displace a brake piston against a brake disc;
- and
- a brake motor control device associated with and configured to control said electric brake motor, the brake motor control device including a connection unit connected to an auxiliary control unit configured to control the electric brake motor in an event of a fault of the associated brake motor control device,
- wherein the auxiliary control unit is assigned to an additional braking device or brake unit of the braking system and the auxiliary control unit is further configured to undertake control of the electric brake motor as a supplementary function in the event of the fault of the brake motor control device, and
- wherein the auxiliary control unit is configured to control an actuator of a hydraulic vehicle brake as a main function.
Dependencies are inferred from the claim text.