Braking system for a railway or tram vehicle
US6250723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Apr 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/3235
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The system comprises at least one main pneumatic duct, actuators for the service brake and the supplementary brake, at least one auxiliary reservoir connected to the main duct and at least one compact electropheumatic control assembly. This assembly has an inlet connector connected to the main duct, an inlet/outlet connector connected to the reservoir and further connected, within the assembly, the inlet connector to allow supply to the reservoir of air under pressure from the main duct, and a plurality of further inlet/outlet connectors connected to the service and supplementary brake actuators. At least at one pneumatic control circuit for controlling the service and supplementary brake is connected between the reservoir and the further inlet/outlet connectors and comprise a plurality of solenoid control valves and pressure sensors/transducers. An electronic communications and control unit is connected to a communications bus, to the sensors, transducers and to the solenoid control valves, and control these latter to perform service braking or supplementary braking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.