Valve assembly and method for controlling the air suspension level of a rail vehicle
US12128937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Jan 25, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to a valve assembly and a method for controlling the air suspension level of a rail vehicle. A system is provided, which is constructionally simple to build and easy to parameterise, for controlling the air suspension level of a rail vehicle. The object of the disclosure is achieved by a valve assembly for controlling the air suspension level of a rail vehicle, comprising a proportional directional valve, a sensor means for continuously detecting a distance variable representing the distance of a carriage body from a chassis or bogie of the rail vehicle, and a digital control device, wherein the control device is designed to be programmable for determining a control deviation based on the actual distance detected by the sensor means and a comparison with a predefinable target distance, and for continuously generating control variables as a linear function of the determined control deviation and the carriage body travelling speed. The object is also achieved by a method for controlling the air suspension level of a rail vehicle with a proportional directional valve, a sensor means for continuously detecting a distance variable representing the distance of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.