Brake maintenance indicator
US9216724B1 · kind B1 · utility
3Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2014 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Aug 20, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61H15/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake maintenance indication system having a first portion determines the brake cylinder pressure and a second portion that is configured to determine the intended brake cylinder pressure based on the difference between the brake pipe pressure and the emergency reservoir pressure. The intended brake cylinder pressure is preferably determined to be 2.5 times of the difference between the brake pipe pressure and the emergency reservoir pressure. In the event of brake cylinder over-pressurization or under-pressurization, an indicator is flagged, thus identifying the presence of a problem with the braking system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.