Estimation of the ageing of a power steering
US10549775B2 · kind B2 · utility
1Cited by
9References
17Claims
0Family size
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Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/0808
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for estimating the ageing of a steering mechanism during which the ageing of the steering mechanism is assessed by calculating a value called «ageing value» according to an ageing function (old, old2, ene) which corresponds to the integral, over time, of an expression which is weighted by a stress indicator (Tm(u), Ts(u)) the value of which at each considered instant (u) is representative of the intensity of a stress force (Tm, Ts), such as the operating force exerted by the assist motor, which is undergone by the steering mechanism at the considered instant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.