Hydraulic control unit for at least one hydraulic unit of a brake system and brake booster control unit for an electromechanical brake booster of a brake system

Patent metadata

Field	Value
Publication number	US-10077037-B2
Application number	US-201515316581-A
Country	US
Kind code	B2
Filing date	Apr 7, 2015
Priority date	Jun 10, 2014
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

A hydraulic control device for at least one hydraulic aggregate of a brake system, and a brake booster control device, interacting therewith, for an electromechanical brake booster of the brake system. The hydraulic control device includes a first control electronics by which at least one motor target quantity that is to be realized by a motor of the electromechanical brake booster can be determined, taking into account a provided brake actuating strength quantity relating to a current actuation of a brake actuating element, and by which a specification signal corresponding to the at least one determined motor target quantity can be outputted to the brake booster control device. The brake booster control device has a second control electronics that, at least in a normal mode, outputs the control signal to the motor of the electromechanical brake booster, taking into account the specification signal outputted by the hydraulic control device.

First claim

What is claimed is:

1. A hydraulic control device for at least one hydraulic aggregate of a brake system, comprising:
a first control electronics by which at least one of: i) at least one valve control signal can be outputted to at least one valve of the hydraulic aggregate and/or of the brake system, and ii) at least one pump motor control signal can be outputted to at least one pump motor of at least one pump of the hydraulic aggregate and/or of the brake system;
wherein the first control electronics is designed to determine at least one motor target quantity to be realized by a motor of an electromechanical brake booster of the brake system, taking into account at least one provided brake actuation strength quantity relating to a brake actuation strength of a current actuation of a brake actuating element connected to the brake system, and to output a specification signal corresponding to the at least one determined motor target quantity to a brake booster control device of the electromechanical brake booster, the brake booster control device to control the motor based on the specification signal from the first control electronics;
wherein the hydraulic control device is a separate device relative to the brake booster control device, the hydraulic control device being a master control device, the brake booster control device being a slave control device and being a slave to the hydraulic control device.

2. The hydraulic control device as recited in claim 1 , wherein the hydraulic control device has at least one first data line terminal to which at least one data line can be connected or is connected in such a way that the hydraulic control device can be connected or is connected to the brake booster control device via the at least one data line.

3. The hydraulic control device as recited in claim 1 , wherein the hydraulic control device has a first clock synchronization line terminal to which a clock synchronization line can be connected or is connected in such a way that the hydraulic control device can be connected or is connected to the brake booster control device via the clock synchronization line.

4. The hydraulic control device as recited in claim 1 , wherein the first control electronics is designed to control at least one of the at least one valve and the at least one pump motor, to execute a brake boosting when there is a functional impairment and/or a functional failure of the brake booster control device and/or of the electromechanical brake booster.

5. A hydraulic aggregate for a brake system, comprising:
a hydraulic control device for the at least one hydraulic aggregate the brake system, comprising:
a first control electronics by which at least one of: i) at least one valve control signal can be outputted to at least one valve of the hydraulic aggregate and/or of the brake system, and ii) at least one pump motor control signal can be outputted to at least one pump motor of at least one pump of the hydraulic aggregate and/or of the brake system;

wherein the first control electronics is designed to determine at least one motor target quantity to be realized by a motor of an electromechanical brake booster of the brake system, taking into account at least one provided brake actuation strength quantity relating to a brake actuation strength of a current actuation of a brake actuating element connected to the brake system, and to output a specification signal corresponding to the at least one determined motor target quantity to a brake booster control device of the electromechanical brake booster, the brake booster control device to control the motor based on the specification signal from the first control electronics;
wherein the hydraulic control device is a separate device relative to the brake booster control device, the hydraulic control device being a master control device, the brake booster control device being a slave control device and being a slave to the hydraulic control device.

6. A brake booster control device for an electromechanical brake booster of a brake system for interaction with a hydraulic control device for at least one hydraulic aggregate of a brake system, the hydraulic control device including a first control electronics by which at least one of: i) at least one valve control signal can be outputted to at least one valve of the hydraulic aggregate and/or of the brake system, and ii) at least one pump motor control signal can be outputted to at least one pump motor of at least one pump of the hydraulic aggregate and/or of the brake system, wherein the first control electronics is designed to determine at least one motor target quantity to be realized by a motor of the electromechanical brake booster of the brake system, taking into account at least one provided brake actuation strength quantity relating to a brake actuation strength of a current actuation of a brake actuating element connected to the brake system, and to output a specification signal corresponding to the at least one determined motor target quantity to the brake booster control device of the electromechanical brake booster, the brake booster control device comprising:
a second control electronics by which at least one control signal can be outputted to the motor of the electromechanical brake booster;
wherein the second control electronics is designed such that, at least in a normal mode, the second control electronics outputs the control signal to the motor of the electromechanical brake booster, taking into account the specification signal outputted by the hydraulic control device, so that the motor controlled by the control signal realizes at least one motor actual quantity that corresponds to the at least one determined motor target quantity.

7. The brake booster control device as recited in claim 6 , wherein the brake booster control device has at least one second data line terminal to which at least one data line can be connected or is connected in such a way that the brake booster control device can be connected or is connected to the hydraulic control device via the at least one data line.

8. The brake booster control device as recited in claim 7 , wherein the brake booster control device is designed to provide the at least one brake actuating strength quantity to the hydraulic control device via the at least one data line taking into account at least one sensor signal of at least one brake actuation sensor.

9. The brake booster control device as recited in claim 6 , wherein the brake booster control device has a second clock synchronization line terminal to which a clock synchronization line can be connected or is connected in such a way that the brake booster control device can be connected or is connected to the hydraulic control device via the clock synchronization line.

10. The brake booster control device as recited in claim 6 , wherein the brake booster control device is capable of being synchronized to the hydraulic control device.

11. The brake booster control device as recited in claim 6 , wherein the second control electronics is capable of being transitioned from the normal mode to a bypass mode when there is at least one of a functional impairment and a functional failure of the hydraulic control device, and the second control electronics is designed to, in the bypass mode, itself determine the at least one motor target quantity, taking into account at least the at least one brake actuation strength quantity and/or the at least one sensor signal.

12. An electromechanical brake booster for a brake system, having a brake booster control device the electromechanical brake booster of the brake system for interaction with a hydraulic control device for at least one hy

Assignees

• Bosch Gmbh Robert

Inventors

• Foitzik Bertram
• Schaefer Patrick Christian

Classifications

• B60T8/44

  co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device {, i.e. open systems} · CPC title

• B60T13/745 Primary

  acting on a hydraulic system, e.g. a master cylinder · CPC title

• B60T13/58

  Combined or convertible systems · CPC title

• B60T2270/403

  Brake circuit failure · CPC title

• B60T8/321

  deceleration (B60T8/34, B60T8/52, B60T8/54, B60T8/56, B60T8/58, B60T8/72, B60T8/86, B60T8/88 take precedence) · CPC title