Emergency brake readback hardware and fault diagnostics routine
US6014600A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A circuit for diagnosing component problems in the circuit and for immediately recognizing an emergency brake application command in a locomotive. The circuit includes a coil of an emergency magnet valve connected to a trainline providing positive DC voltage to the coil and circuit, and a diode connecting the coil to a switch of a brake handle and to a light emitting device. The brake handle switch and light emitting device are connected to the negative side of the trainline, with the light emitting device providing an immediate indication of an emergency brake application command effected by the closing of the brake handle switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.