Method for calculating, in real time, the absolute position of a power steering member with improved accuracy
US10183695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2014 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | May 19, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention concerns a method for determining the position of a movable steering member (1, 2, 3) belonging to a steering mechanism (4) of a vehicle that comprises at least a first movable member (1), such as a shaft (1) of an assistance motor (M), and a second movable member (2), such as a rack (2), which cooperate with each other by means of at least one first link (L1), said method comprising a step (a) that involves measuring the position (θ1) of the first member (1), then a step (b) that involves calculating the instantaneous position (θ2) of the second member (2) from said position of the first member (θ1), and a correction step (d) during which the calculation of the position (θ2) of the second member (2) is adapted, taking into consideration the offset (δθυ) in the position of the second member (2) that results from the elastic deformation of the first link (L1) under the force (C1) transmitted by the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.