Microprocessor based electro-pneumatic locomotive brake control system having brake assurance circuit
US5222788A · kind A · utility
37Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Sep 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A microprocessor based, electro-pneumatic brake control system for a locomotive including electro-pneumatic valves operated by a microprocessor for controlling the locomotive brake pressure in parallel with a pneumatic back-up control valve that includes a quick release valve to bail off the locomotive brake. A brake assurance circuit is provided to apply the locomotive brakes through the electro-pneumatic valves in bypass of the microprocessor when a loss of electrical power at the microprocessor occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.