Automatic brake backup control system and method
US10315637B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/402
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is an automatic brake backup control system and method for a train equipped with an electronic airbrake system and including at least one locomotive, a brake pipe, a source of control pressure, and at least one brake. The system includes a pneumatic operating unit that includes a brake pipe control portion. The brake pipe control portion includes a primary passage network, a control passage network, and an equalizing reservoir control chamber configured to control air pressure of the brake pipe. The brake pipe control portion also includes a first and second electronically controlled charge valve, and a first and second electronically controlled vent valve. The brake pipe control portion further includes an operating state control configured to switch operation of the at least one locomotive between a normal operation mode and a backup operation mode in response to an input by an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.