Electronic Control system for controlling the brakes fitted on a rail or light rail motive power unit
US7334849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Jun 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/665
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for controlling brakes on a rail or light rail motive power unit, in which the brakes are provided with a pneumatic braking system including a pneumatic main pipe and a pneumatic brake pipe. The system includes a control unit, manually operated actuating devices, a relay valve interposed between the pneumatic main pipe and the brake pipe, an electro-pneumatic control unit operable under the control of the unit to supply a variable braking control pressure, pneumatic back-up devices operable under the control of the actuating devices to supply a pneumatic back-up pressure which can be used to control the braking, and an enabling valve which can be switched between a normal operating condition and a back-up operating condition in which it can connect a control inlet of the relay valve selectively to the outlet of the electropneumatic unit or to the back-up devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.