Electrohydraulic pressure control device for vehicle brake systems

Patent metadata

Field	Value
Publication number	US-9925970-B2
Application number	US-201615187962-A
Country	US
Kind code	B2
Filing date	Jun 21, 2016
Priority date	Feb 29, 2012
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

An electrohydraulic pressure control device for vehicle brake systems, including at least one electronic control unit, at least one hydraulic unit and at least one electric motor for driving a hydraulic pump, wherein the electronic control unit is mechanically connected to the hydraulic unit and is sealed off from the outer environment in at least one connection zone to the hydraulic unit by a circumferential, in particular elastic sealing material, and the sealing material extends along an edge of the substantially cuboid-shaped hydraulic unit, wherein the edge is formed by a face of the cuboid-shaped hydraulic unit facing the electronic control unit and at least one face of the cuboid-shaped hydraulic unit not facing the electronic control unit, and the sealing material at least partially covers both cuboid faces in the connection zone and/or sealing zone.

First claim

What is claimed:

1. An electrohydraulic pressure control device for vehicle brake systems, comprising:
at least one electronic control unit,
at least one substantially cuboid-shaped hydraulic unit; and
at least one electric motor for driving a hydraulic pump,
wherein the electronic control unit is mechanically connected to the at least one substantially cuboid-shaped hydraulic unit and is sealed off from an external environment in at least one zone of connection to the at least one substantially cuboid-shaped hydraulic unit by a circumferential, flexible, sealing material, and
the electronic control unit comprises a housing and at least one plug having a plurality of contact pins and/or at least one connection line for electrical contacting by at least one connection plug,
wherein the at least one plug is arranged on a side of the housing of the electronic control unit which faces away from the at least one substantially cuboid-shaped hydraulic unit, and the housing of the electronic control unit surrounds at least one valve coil for controlling hydraulic valves and at least one circuit board for holding electrical and/or electronic components, the housing having an inside surface facing the at least one valve coil, a lower surface facing the at least one substantially cuboid-shaped hydraulic unit, and a projection extending from the lower surface in a direction of the at least one substantially cuboid-shaped hydraulic unit,
wherein the contact pins and the at least one valve coil and at least one terminal of the electric motor are each connected in an electrically conductive manner to the at least one circuit board,
wherein the sealing material extends along an edge of the at least one substantially cuboid-shaped hydraulic unit,
wherein the edge is formed by a cuboid face of the at least one substantially cuboid-shaped hydraulic unit which faces the electronic control unit and at least one cuboid face of the at least one substantially cuboid-shaped hydraulic unit which does not face the electronic control unit, and the sealing material at least partially covers both cuboid faces in the at least one zone of connection and/or a sealing zone, the electric motor is surrounded by the electronic control unit,
wherein the electronic control unit comprises at least one support element, the at least one support element supported against the at least one substantially cuboid-shaped hydraulic unit and the housing of the electronic control unit in such a way that a lower surface of the at least one support element and the lower surface of the housing of the electronic control unit have a minimum spacing with respect to the at least one substantially cuboid-shaped hydraulic unit in the at least one zone of connection and/or the sealing zone, and
wherein the sealing material contacts the lower surface of the housing, the lower surface of the at least one support element, and the projection of the housing, and the sealing material fills a space between the inside surface of the housing and an outside surface of the at least one support element in the at least one zone of connection and/or the sealing zone.

2. The electronic control unit as claimed in claim 1 , wherein the sealing material, which additionally acts as an adhesive, has an increased fluidity during an assembly process and is subject to a curing operation.

3. The electronic control unit as claimed in claim 1 , wherein the housing of the electronic control unit is connected materially to the at least one plug and/or is manufactured from a plastic and is of substantially one-piece design.

4. The electronic control unit as claimed in claim 1 , wherein the mechanical connection of the electronic control unit to the at least one substantially cuboid-shaped hydraulic unit is formed while avoiding one or more screwed joints.

5. The electronic control unit as claimed in claim 1 , wherein the housing of the electronic control unit has latching means, which latch into recesses and/or latching projections on the at least one substantially cuboid-shaped hydraulic unit.

6. The electronic control unit as claimed in claim 1 , wherein the at least one support element rests on the at least one substantially cuboid-shaped hydraulic unit by at least one base part, wherein the at least one base part is connected to the at least one support element.

7. The electronic control unit as claimed in claim 1 , wherein the at least one valve coil is additionally connected to the at least one substantially cuboid-shaped hydraulic unit by an adhesive.

8. The electronic control unit as claimed in claim 1 , wherein the plurality of contact pins are connected in an electrically conductive manner to the at least one circuit board by press-in contacts, and the plurality of contact pins have at least one sawtooth profile, wherein the at least one sawtooth profile engages in recesses in the housing of the electronic control unit.

9. The electronic control unit as claimed in claim 1 , wherein at least one at least partially mechanical fixing of the at least one circuit board to the housing of the electronic control unit is provided by the plurality of contact pins.

10. The electronic control unit as claimed in claim 1 , wherein the plurality of contact pins have stop shoulders which rest on the housing of the electronic control unit.

11. An electrohydraulic pressure control device for vehicle brake systems, comprising:
at least one electronic control unit,
at least one substantially cuboid-shaped hydraulic unit; and
at least one electric motor for driving a hydraulic pump,
wherein the electronic control unit is mechanically connected to the at least one substantially cuboid-shaped hydraulic unit and is sealed off from an external environment in at least one zone of connection to the at least one substantially cuboid-shaped hydraulic unit by a circumferential, flexible, sealing material, and
the electronic control unit comprises a housing and at least one plug having a plurality of contact pins and/or at least one connection line for electrical contacting by at least one connection plug,
wherein the at least one plug is arranged on a side of the housing of the electronic control unit which faces away from the at least one substantially cuboid-shaped hydraulic unit, and the housing of the electronic control unit surrounds at least one valve coil for controlling hydraulic valves and at least one circuit board for holding electrical and/or electronic components, the housing having an inside surface facing the at least one valve coil, a lower surface facing the at least one substantially cuboid-shaped hydraulic unit, and a projection extending from the lower surface in a direction of the at least one substantially cuboid-shaped hydraulic unit,
wherein the contact pins and the at least one valve coil and at least one terminal of the electric motor are each connected in an electrically conductive manner to the at least one circuit board,
wherein the sealing material extends along an edge of the at least one substantially cuboid-shaped hydraulic unit,
wherein the edge is formed by a cuboid face of the at least one substantially cuboid-shaped hydraulic unit which faces the electronic control unit and at least one cuboid face of the at least one substantially cuboid-shaped hydraulic unit which does not face the electronic control unit, and the sealing material at least partially covers both cuboid faces in the at least one zone of connection and/or a sealing zone,
wherein the electronic control unit comprises at least one support element, the at least one support element supported against the at least one substantially cuboid-shaped hydraulic unit and the housing of the electronic control

Assignees

• Continental Teves Ag & Co Ohg

Inventors

• Heise Andreas

Classifications

• B60T13/662

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

• B60T13/686

  in hydraulic systems or parts thereof · CPC title

• B60T17/02 Primary

  Arrangements of pumps or compressors, or control devices therefor · CPC title

• B60T13/20

  with control of pump driving means · CPC title