Electrohydraulic motor vehicle control device

Patent metadata

Field	Value
Publication number	US-2019202425-A1
Application number	US-201716327468-A
Country	US
Kind code	A1
Filing date	Sep 19, 2017
Priority date	Sep 21, 2016
Publication date	Jul 4, 2019
Grant date	—

Abstract

An electrohydraulic motor vehicle control device, in particular for a motor vehicle brake system, includes a hydraulic unit with electrically activated valves, an electronic control unit which includes a first printed circuit board with electric and/or electronic components for actuating the valves, and an electric motor for driving an electrically controllable, hydraulic pressure source, wherein electric and/or electronic components, in particular power electronics components for actuating the electric motor are arranged on a second printed circuit board which is arranged separately from the electronic control unit.

First claim

1 . An electrohydraulic motor vehicle control device, for a motor vehicle brake system, comprising:
a hydraulic unit with electrically activated valves, an electronic control unit which comprises a first printed circuit board with electric and/or electronic components for actuating the valves, and an electric motor for driving an electrically controllable, hydraulic pressure source, wherein electric and/or electronic components for actuating the electric motor are arranged on a second printed circuit board which is arranged separately from the electronic control unit.

2 . The motor vehicle control device as claimed in claim 1 , wherein the electronic control unit and the electric motor are arranged on different side faces, facing opposite one another, of the hydraulic unit, and the second printed circuit board is arranged in the region of the side face on which the electric motor is arranged.

3 . The motor vehicle control device as claimed in claim 1 , wherein the second printed circuit board is arranged between the hydraulic unit and the electric motor.

4 . The motor vehicle control device as claimed in claim 1 , wherein the second printed circuit board has an opening through which part of the pressure source is led.

5 . The motor vehicle control device as claimed in claim 4 , wherein a cylinder or a rotary-translatory gear mechanism of the pressure source is led through the opening in the second printed circuit board.

6 . The motor vehicle control device as claimed in claim 1 , wherein the pressure source is embodied as a hydraulic cylinder-piston arrangement whose piston can be shifted by the electric motor by a rotary-translatory gear mechanism.

7 . The motor vehicle control device as claimed in claim 1 , wherein contact is made with the terminals of the motor windings of the electric motor directly on the second printed circuit board.

8 . The motor vehicle control device as claimed in claim 1 , wherein the electric motor is encapsulated by injection molding.

9 . The motor vehicle control device as claimed in claim 8 , wherein at least one electric or electronic component of the second printed circuit board is arranged in a pocket in the injection-molded encapsulation.

10 . The motor vehicle control device as claimed in claim 1 , wherein the second printed circuit board is embodied in two parts with a first and a second printed circuit board part.

11 . The motor vehicle control device as claimed in claim 9 , wherein the second printed circuit board has an opening through which part of the pressure source is led, and wherein the printed circuit board parts are embodied in such a way that they form the opening for leading through part of the pressure source.

12 . The motor vehicle control device as claimed in claim 9 , wherein the electric and/or electronic components for actuating the electric motor on the first and second printed circuit board parts are embodied redundantly.

13 . The motor vehicle control device as claimed in claim 1 , wherein the supply of the second printed circuit board with electrical energy is embodied redundantly.

14 . The motor vehicle control device as claimed in claim 1 , wherein a brake-pedal-activated master brake cylinder is arranged in the hydraulic unit.

15 . The motor vehicle control device as claim 1 , wherein a brake pedal sensation simulator is arranged at least partially in the hydraulic unit.

16 . The motor vehicle control device as claimed in claim 9 , wherein the at least one electric or electronic component of the second printed circuit board is a capacitor or an inductor.

17 . The motor vehicle control device as claimed in claim 10 , wherein the electric and/or electronic components for actuating the electric motor on the first and second printed circuit board parts are embodied redundantly.

18 . The motor vehicle control device as claimed in claim 2 , wherein the second printed circuit board is arranged between the hydraulic unit and the electric motor.

Assignees

• Continental Teves Ag & Co Ohg

Inventors

• Feigel Hans-Jörg
• Tarandek Kristijan

Classifications

• F04B35/04

  the means being electric · CPC title

• B60T13/161

  Systems with master cylinder · CPC title

• B60T8/4081

  Systems with stroke simulating devices for driver input (B60T8/4077 takes precedence) · CPC title

• B60T13/662 Primary

  characterised by specified functions of the control system components · CPC title

• B60T8/17

  Using electrical or electronic regulation means to control braking {(detecting or indicating faulty operation B60T8/885)} · CPC title