Assembly for a hydraulic brake system, and vehicle brake system

Patent metadata

Field	Value
Publication number	US-11518356-B2
Application number	US-201816766312-A
Country	US
Kind code	B2
Filing date	Nov 22, 2018
Priority date	Nov 29, 2017
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

The invention relates to an assembly ( 10 ) for a hydraulic brake system having a fluid container ( 12 ) for a brake fluid, an electronic control unit ( 14 ) with a first housing ( 16 ), a hydraulic block ( 18 ) with a second housing ( 20 ), and a brake pressure control device which is arranged at least in sections in the second housing ( 20 ), and a fastening device for fastening the fluid container ( 12 ) and the electronic control unit ( 14 ) to the hydraulic block ( 18 ). The second housing ( 20 ) has a first fluid connector for connecting to the fluid container ( 12 ) and a second fluid connector ( 24 ) for connecting to a hydraulic line of the brake system. The brake pressure control device is set up to pressurize the brake fluid. The fastening device has a single-piece connecting element ( 28 ) which, in the mounted state of the assembly ( 10 ), connects the second housing ( 20 ) to the first housing ( 16 ) and/or an electric motor ( 26 ) of the brake pressure control device.

First claim

The invention claimed is:

1. An assembly ( 10 ) for a hydraulic brake system having
a fluid container ( 12 ) for a brake fluid,
an electronic control unit ( 14 ) with a first housing ( 16 ),
a hydraulic block ( 18 ) with a second housing ( 20 ), and a brake pressure control device, which is arranged at least partially in the second housing ( 20 ), wherein the second housing ( 20 ) has a first fluid port for connection to the fluid container ( 12 ) and a second fluid port ( 24 ) for connection to a hydraulic line of the brake system, wherein the brake pressure control device is designed to pressurize the brake fluid, and
a fastening device ( 22 ) for fastening the fluid container ( 12 ) and the electronic control unit ( 14 ) to the hydraulic block ( 18 ),
wherein the fastening device ( 22 ) has a one-piece connecting element ( 28 ), which, in the assembled state of the assembly ( 10 ), connects the second housing ( 20 ) to the first housing ( 16 ) and/or to an electric motor of the brake pressure control device, and
wherein both the fluid container ( 12 ) and the first housing ( 16 ) or the electric motor are attached to the second housing ( 20 ) by means of the connecting element ( 28 ).

2. The assembly as in claim 1 , wherein the one-piece connecting element ( 28 ) furthermore connects the fluid container ( 12 ) to the second housing ( 20 ) and to the first housing ( 16 ) and/or the electric motor in the assembled state of the assembly ( 10 ).

3. The assembly as in claim 1 , wherein the connecting element ( 28 ) is a bolt or a rivet.

4. The assembly as in claim 1 , wherein the connecting element ( 28 ) is designed to lock the fluid container ( 12 ) to the hydraulic block ( 18 ).

5. The assembly as in claim 1 , wherein the connecting element ( 28 ) passes partially through the fluid container ( 12 ), the first housing ( 16 ) and/or the second housing ( 20 ).

6. The assembly as in claim 1 , wherein the connecting element ( 28 ) is a bolt with an external thread, and wherein an internal thread ( 34 ), in which at least a section of the bolt is received, is formed in the first housing ( 16 ).

7. The assembly as in claim 1 , wherein the fastening device ( 22 ) has one or more fastening extensions ( 50 , 52 , 54 , 56 ; 51 ), which each engage in a corresponding recess ( 60 , 62 , 64 , 66 ) formed in the second housing ( 20 ).

8. The assembly as in claim 7 , wherein some of the fastening extensions ( 50 , 52 , 54 , 56 ; 51 ) are arranged on opposite sides of the fluid container ( 12 ), and/or wherein one or more of the fastening extensions ( 50 , 52 , 54 , 56 ; 51 ) is/are formed integrally with the fluid container ( 12 ).

9. The assembly as in claim 7 , wherein each recess is formed in the region of an edge ( 68 , 72 ) of the second housing ( 20 ) and is open toward a first surface ( 44 ) of the second housing ( 20 ) and toward a second surface ( 70 ) of the second housing ( 20 ),
wherein the first surface ( 44 ) extends at an angle to the second surface ( 70 ).

10. The assembly as in claim 7 , wherein the connecting element ( 28 ) passes through one or more of the recesses ( 60 , 62 , 64 , 66 ) and/or through one or more of the fastening extensions ( 50 , 52 , 54 , 56 ).

11. The assembly as in claim 1 , wherein the fastening device ( 22 ) has a frame ( 46 ), which is arranged on an end of the fluid container ( 12 ) which faces the hydraulic block ( 18 ), and
wherein the frame ( 46 ) is designed as a separate component.

12. The assembly as in claim 11 , wherein one or more of the fastening extensions ( 50 , 52 , 54 , 56 ; 51 ) is/are formed integrally with the frame ( 46 ) and/or projects/project laterally from the frame ( 46 ).

13. The assembly as in claim 7 , wherein at least one of the fastening extensions ( 51 ) has a through opening ( 212 ), the hydraulic block ( 18 ) has a hole ( 214 ) which is open toward the recess ( 60 ) and the fastening device ( 22 ) has a coupling element ( 216 ) having at least one locking bar ( 218 ), and
wherein, in the assembled state of the assembly, the hole ( 214 ) is in alignment with the through opening ( 212 ) along a central longitudinal axis (A) of the locking bar ( 218 ), and the locking bar ( 218 ) passes through the through opening ( 212 ) and is in engagement with the hole ( 214 ).

14. The assembly as in claim 13 , wherein the fastening extension ( 51 ) is designed as a flat tab.

15. The assembly as in claim 13 , wherein the coupling element ( 216 ) has a retention device, which is designed to hold the locking bar ( 218 ) in engagement with the hole ( 214 ) in the assembled state of the assembly, and
wherein the retention device is preferably designed to engage on the connecting element ( 28 ) or on the fastening extension ( 51 ).

16. The assembly as in claim 15 , wherein the retention device has at least one latching arm ( 222 ), which is connected to the locking bar ( 218 ) via a base section ( 220 ) and which is designed to engage on the connecting element ( 28 ) or on the fastening extension ( 51 ) in the assembled state of the assembly.

17. The assembly as in claim 16 , wherein, in the assembled state of the assembly, the connecting element ( 28 ) is arranged between the base section ( 220 ) and the fastening extension ( 51 ) and/or between the latching arm ( 222 ) and the locking bar ( 218 ).

18. The assembly as in claim 16 , wherein the locking bar ( 218 ) extends substantially parallel to the latching arm ( 222 ) and/or is spaced apart from the latching arm ( 222 ).

19. The assembly as in claim 16 , wherein the latching arm ( 222 ) is elastic, at least in some section or sections.

20. The assembly as in claim 13 , wherein the coupling element ( 216 ) has a plurality of locking bars ( 218 ) and/or a plurality of latching arms ( 222 ).

21. The assembly as in claim 13 , wherein a central longitudinal axis of the connecting element ( 28 ) is aligned perpendicularly to the central longitudinal axis (A) of the locking bar when the assembly is in the assembled state thereof.

22. The assembly as in claim 13 , wherein the coupling element ( 216 ) and the connecting element ( 28 ) are formed separately from one another.

23. A vehicle brake system having an assembly ( 10 ) as in claim 1 .

Assignees

• Zf Active Safety Gmbh

Inventors

• Mallmann Markus
• Janson Marcus

Classifications

• B60T11/22 Primary

  characterised by being integral with reservoir · CPC title

• B60T8/368

  combined with other mechanical components, e.g. pump units, master cylinders · CPC title