ECP brake with dual mode empty load
US8226174B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/665
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rail vehicle brake system includes an electric controlled pneumatic brake valve having a controller and includes an empty-load device connecting the brake valve to a brake device. An electro-pneumatic lock-out valve is controlled by the controller and has a first position which allows the proportioning of the inlet pressure to the outlet by the empty-load device and a lock-out position which pneumatically prevents the proportioning of the inlet pressure to the outlet by the empty-load device. Also, the system may include a sensor for sensing the vehicle load; and the controller controls the brake valve in response to the sensed load taking into account the operation of the change over valve of the empty-load device. Also, an empty-load device including a load sensor is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.