Method of measuring condition of track using vehicle for commercial operation and vehicle for commercial operation for measuring condition of track
US9963157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M99/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of precisely measuring the track twist of a track on which a vehicle for commercial operation is travelling using this vehicle is to be provided. The method includes measuring a condition of a track (R) on which a vehicle for commercial operation (100) is travelling using this vehicle (100). The vehicle for commercial operation includes a bogie (10). The bogie includes four wheels (1) and primary springs (2) provided to correspond to the four wheels (1) and support the corresponding wheels (1), and is capable of measuring a wheel load of each of the four wheels (1). The method includes the steps of: measuring the wheel load of each wheel (1) (S13); calculating the displacement of each primary spring (2) based on the measured wheel load (S15); and calculating the track twist (h) of the track (R) based on the calculated displacements of the primary springs (2) (S18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.