Method and system for detection and analysis of railway bogie operational problems
US9395276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for detecting defects to railway wagon wheels and to the rail. A method for detecting a wheel flat, or an event that may cause a wheel flat to develop on a railway wagon, including the steps of a) monitoring at least the longitudinal and vertical acceleration of said railway wagon, and b) concluding that a wheel flat has developed, or that there is a risk of developing a wheel flat, if a specific acceleration pattern is monitored, said pattern comprising a longitudinal acceleration above a first threshold followed by a vertical acceleration above a second threshold. A system for detecting a wheel flat of at least one wheel of a railway wagon and the use of an acceleration sensor mounted on the sprung part of a railway wagon for estimating the wheel flat size of a wheel of the railway wagon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.