The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2020
Filed:
Apr. 07, 2015
Jtekt Europe, Irigny, FR;
Sébastien Bourdrez, Yzeron, FR;
Pascal Moulaire, La Tour de Salvagny, FR;
Romaric Pregniard, St Symphorien d'Ozon, FR;
Christophe Ravier, Saint Pierre de Chandieu, FR;
JTEKT EUROPE, Irigny, FR;
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 (T(u), T(u)) the value of which at each considered instant (u) is representative of the intensity of a stress force (T, T), such as the operating force exerted by the assist motor, which is undergone by the steering mechanism at the considered instant.