Pneumatic trailer brake circuit with breakaway detection and method thereof
US10328912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2016 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Dec 11, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/403
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of detecting a leak in an air trailer brake circuit of a trailer includes providing a controller, a base valve, a first sensor, a second sensor, a leak control valve having a solenoid, a pneumatic fluid supply, a first brake output, and a second brake output. The method further includes supplying a first pressure to an inlet of the base valve and outputting a second pressure from an outlet of the base valve. The first pressure is detected with the first sensor and the second pressure is detected with the second sensor. The method also includes communicating the detected first pressure and the second pressure to the controller, and comparing a difference between first pressure and the second pressure to a threshold. A leak is detected in the air trailer brake circuit if the difference satisfies the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.