Method and track maintenance machine for correction of track position errors
US11174598B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Oct 4, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2203/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for the correction of vertical position error of a track by a track tamping machine and a dynamic track stabilizer. Starting from a registered actual position, an over-lift value is prescribed for a treated track location with which the track is lifted into a preliminary over-lift track position and tamped. The track is subsequently lowered by dynamic stabilization into a resulting final track position. In this, a smoothed actual position course is formed from a course of the actual track position, wherein an over-lift value is prescribed for the treated track location in dependence of the course of the actual track position with regard to the smoothed actual position course. In this way, only short-wave track faults are treated with an over-lift value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.