Valve arrangement and brake system

Patent metadata

Field	Value
Publication number	US-11685356-B2
Application number	US-201816652483-A
Country	US
Kind code	B2
Filing date	Sep 25, 2018
Priority date	Oct 6, 2017
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

The invention relates to a valve arrangement (10) comprising valves and coil arrangements (20), each coil arrangement (20) having two coils (110, 210) which are electrically connected to separate control units (100, 200). Each valve can be independently actuated by either the first coil (110) or the second coil (210) of the coil arrangement (20) associated therewith. The invention further relates to a brake system (400, 500) having such a valve arrangement (10).

First claim

The invention claimed is:

1. A valve arrangement comprising:
a number of valves,
a number of coil arrangements, wherein a respective coil arrangement is assigned to each valve for actuating the valve, and wherein each coil arrangement has a first coil and a second coil,
a first control unit, and
a second control unit,
wherein the first control unit is connected to all first coils in order to actuate these,
wherein the second control unit is connected to all second coils in order to actuate these, and
wherein each valve can be operated both by the first coil and by the second coil of the coil arrangement assigned thereto, independently of each other,
wherein each first coil has a respective first coil housing comprising a first sidewall surrounding the first coil at a first radial distance and each second coil has a respective second coil housing comprising a second sidewall surrounding the second coil at a second radial distance greater than the first radial distance, and
wherein the first sidewall of the first coil housing and the second sidewall of the second coil housing of each coil arrangement overlap in a radial direction of the coil arrangement, the overlap extending less than an entire axial length of the first and second coil housings.

2. The valve arrangement as claimed in claim 1 ,
wherein the first control unit and the second control unit are configured redundantly with respect to each other and/or independently of each other.

3. The valve arrangement as claimed in claim 2 , wherein the first coils are electrically isolated from the second coils, and/or wherein the first control unit is electrically isolated from the second control unit.

4. The valve arrangement as claimed in claim 1 ,
wherein the first coils are electrically isolated from the second coils,
and/or
wherein the first control unit is electrically isolated from the second control unit.

5. The valve arrangement as claimed in claim 1 ,
wherein the first coils are connected to a first circuit board of the first control unit by contact pins,
and/or
wherein the second coils are connected to a second circuit board ( 202 ) of the first control unit by contact pins.

6. The valve arrangement as claimed in claim 1 ,
wherein each coil arrangement has a seal between the respective first coil and the respective second coil, the second sidewall surrounding the seal at the second radial distance.

7. The valve arrangement as claimed claim 1 ,
wherein each coil arrangement has (i) a seal between the respective second coil and the second control unit or (ii) a seal between the respective second coil and the first control unit.

8. The valve arrangement as claimed in claim 1 ,
wherein each second coil housing has a cone for receiving the respective first coil housing of the coil arrangement.

9. The valve arrangement as claimed in claim 1 ,
wherein the first coils are not connected to the second control unit,
and/or
wherein the second coils are not connected to the first control unit.

10. The valve arrangement as claimed in claim 1 ,
wherein the valve arrangement has a plurality of valves.

11. A brake system comprising:
a valve arrangement as claimed in claim 1 , and
a number of brake cylinders,
wherein the valves of the valve arrangement are connected from and/or to the brake cylinders for controlling a hydraulic flow.

12. The brake system as claimed in claim 11 , which furthermore comprises a pedal simulator, and wherein the valves of the valve arrangement are connected from and/or to the pedal simulator for controlling a hydraulic flow.

13. The brake system as claimed in claim 11 ,
wherein the brake system is a brake-by-wire system.

14. The brake system as claimed in claim 13 ,
which furthermore comprises a pedal simulator, and
wherein the valves of the valve arrangement are connected from and/or to the pedal simulator for controlling a hydraulic flow.

Assignees

• Continental Teves Ag & Co Ohg

Inventors

• Besier Marco
• Stauder Peter
• Jungbecker Johann
• Jürgens Michael

Classifications

• F16K31/0679

  with more than one energising coil · CPC title

• B60T13/686

  in hydraulic systems or parts thereof · CPC title

• B60T15/028 Primary

  in hydraulic systems · CPC title

• B60T8/4081

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

• B60T2270/82

  Brake-by-Wire, EHB · CPC title