Modelling of frictions in a power steering system using a scatter of points
US10180378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2015 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Oct 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating the frictions in a power steering mechanism, the method including a step of acquiring a series of characterization points, during which are measured, for several different values taken successively by the assistance force during the operation of the steering mechanism, the corresponding friction values, so as to empirically obtain a series of distinct characterization points each associating a measured friction value to a measured value representative of the assistance force, then a step of constructing an empirical friction model, during which a correlation law is established between the characterization points constitutive of the series of characterization points, from the scatter chart formed by the series of the characterization points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.