Pneumatic Braking Device for a Utility Vehicle
US-2018251112-A1 · Sep 6, 2018 · US
Pneumatic braking device
US11091137B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11091137-B2 |
| Application number | US-201815972967-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2018 |
| Priority date | Nov 6, 2015 |
| Publication date | Aug 17, 2021 |
| Grant date | Aug 17, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A pneumatic braking device for a utility vehicle includes at least one pneumatically controllable spring accumulator for a parking brake of the utility vehicle and an electronic parking brake device. The electronic parking brake device has at least one electronic control unit, at least one bistable valve unit, at least one first valve unit by which a parking brake of a trailer of the utility vehicle can be deactivated when activating the parking brake of the utility vehicle, at least one second valve device which can be connected in such a way that when there is a decrease in the system pressure for supplying the parking brake of the trailer, the parking brake of the trailer can be activated, and a traction vehicle protection valve.
First claim
Opening claim text (preview).
What is claimed is: 1. A pneumatic brake device for a utility vehicle, comprising: at least one pneumatically actuable spring store for a parking brake of the utility vehicle; an electronic parking brake device, comprising at least one electronic control unit, at least one bistable valve unit, at least one first valve unit by which a parking brake of a trailer of the utility vehicle is deactivatable when the parking brake of the utility vehicle is activated, at least one second valve device which is connectable such that, when there is a drop in the system pressure for supplying the parking brake of the trailer, the parking brake of the trailer can be activated, and a tractor vehicle protection valve, wherein the bistable valve unit comprises a bistable valve with feedback. 2. The pneumatic brake device as claimed in claim 1 , wherein both the parking brake of the utility vehicle and also the parking brake of the trailer are actuatable by the bistable valve unit. 3. The pneumatic brake device as claimed in claim 1 , wherein the second valve device has at least one pressure sensor by which a drop in the system pressure below a prespecified threshold value is determinable and a signal can be generated, it being possible for the parking brake of the trailer to be activated by the electronic control unit on the basis of said signal. 4. The pneumatic brake device as claimed in claim 1 , wherein the second valve device has at least one pneumatic valve by which the parking brake of the trailer is activatable. 5. The pneumatic brake device as claimed in claim 1 , wherein the bistable valve is a relay valve. 6. The pneumatic brake device as claimed in claim 5 , wherein the bistable valve unit further has a throttle. 7. The pneumatic brake device as claimed in claim 1 , wherein the first valve unit includes a relay valve of the trailer and at least two further solenoid valves. 8. The pneumatic brake device as claimed in claim 1 , wherein the second valve unit includes a relay valve of the trailer, at least two further solenoid valves and also at least one pressure sensor. 9. The pneumatic brake device as claimed in claim 1 , wherein the second valve unit includes a relay valve of the trailer and at least one deaeration valve. 10. The pneumatic brake device as claimed in claim 2 , wherein the tractor vehicle protection valve is a constituent part of the electronic parking brake device.
Assignees
Inventors
Classifications
systems with both indirect application and application by springs or weights and released by compressed air · CPC title
Control arrangements therefor · CPC title
Brakes applied by springs or weights and released hydraulically · CPC title
characterised by specified functions of the control system components · CPC title
Brake circuit failure · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11091137B2 cover?
- A pneumatic braking device for a utility vehicle includes at least one pneumatically controllable spring accumulator for a parking brake of the utility vehicle and an electronic parking brake device. The electronic parking brake device has at least one electronic control unit, at least one bistable valve unit, at least one first valve unit by which a parking brake of a trailer of the utility ve…
- Who is the assignee on this patent?
- Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B60T13/263. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 17 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).