Electrohydraulic motor vehicle control device

Patent metadata

Field	Value
Publication number	US-2019217837-A1
Application number	US-201716331582-A
Country	US
Kind code	A1
Filing date	Sep 1, 2017
Priority date	Sep 21, 2016
Publication date	Jul 18, 2019
Grant date	—

Abstract

An electrohydraulic motor vehicle control device, in particular for a motor vehicle brake system, including a hydraulic unit with electrically activated valves and a brake-pedal-activated master brake cylinder, an electronic control unit which comprises a first printed circuit board with electrical and/or electronic components for actuating the valves, and an electric motor for driving an electrically controllable, hydraulic pressure source which is arranged on a first side face of the hydraulic unit, wherein a second printed circuit board is provided which is arranged in a region of the first side face of the hydraulic unit, wherein a first sensor element for sensing activation of a brake pedal is arranged on the second printed circuit board.

First claim

1 . An electrohydraulic motor vehicle control device for a motor vehicle brake system, comprising:
a hydraulic unit with electrically activated valves and a brake-pedal-activated master brake cylinder, an electronic control unit which comprises a first printed circuit board with electrical and/or electronic components for actuating the valves, an electric motor for driving an electrically controllable, hydraulic pressure source which is arranged on a first side face of the hydraulic unit, a second printed circuit board which is arranged in a region of the first side face of the hydraulic unit, and a first sensor element for sensing activation of a brake pedal is arranged on the second printed circuit board.

2 . The motor vehicle control device as claimed in claim 1 , wherein the first sensor element for sensing activation of a brake pedal is arranged on a face of the second printed circuit board which faces the hydraulic unit.

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

4 . The motor vehicle control device as claimed in claim 1 , wherein one or more second sensor elements for sensing a location or position of the electric motor is/are arranged on the second printed circuit board.

5 . The motor vehicle control device as claimed in claim 4 , wherein the second sensor element or elements is/are arranged on a face of the second printed circuit board which faces the electric motor.

6 . 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 projects.

7 . The motor vehicle control device as claimed in claim 6 , wherein one or more second sensor elements for sensing a location or position of the electric motor is/are arranged on the second printed circuit board and adjacent to the part of the pressure source which projects through the second printed circuit board.

8 . 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, wherein the first sensor element is arranged only on one of the printed circuit board parts.

9 . The motor vehicle control device as claimed in claim 8 , wherein one or more second sensor elements for sensing a location or position of the electric motor is/are arranged on the second printed circuit board and the one or more second sensor elements is/are embodied redundantly on the first and the second printed circuit board parts.

10 . The motor vehicle control device as claimed in claim 8 , wherein the first and second printed circuit board parts are embodied in such a way that they form an opening through which part of the pressure source projects.

11 . The motor vehicle control device as claimed in claim 1 , wherein the first sensor element senses the shifting of or the position of a shiftable part of the master brake cylinder.

12 . The motor vehicle control device as claimed in claim 1 , wherein power electronics components for actuating the electric motor are arranged on the second printed circuit board.

13 . The motor vehicle control device as claimed in claim 1 , wherein a brake pedal sensation simulator is arranged at least partially in the hydraulic unit, wherein a pressure sensor which senses a pressure of the brake pedal sensation simulator is arranged on the first printed circuit board of the electronic control unit.

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

15 . The motor vehicle control device as claimed in claim 6 , wherein one or more second sensor elements for sensing a location or position of the electric motor is/are arranged on the second printed circuit board and are arranged around the part of the pressure source which projects through the second printed circuit board.

16 . The motor vehicle control device as claimed in claim 1 , wherein the first sensor element senses the shifting of or the position of a piston of the master brake cylinder.

Assignees

• Continental Teves Ag & Co Ohg

Inventors

• Feigel Hans-Jörg

Classifications

• B60T13/662 Primary

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

• B60T13/745

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

• B60T8/4081

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

• B60T2220/04

  Pedal travel sensor, stroke sensor; Sensing brake request · CPC title

• B60T8/3675

  integrated in modulator units · CPC title