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:
May. 20, 2008
Filed:
Feb. 16, 2004
Jean-marc Kasbarian, Lyons, FR;
Virginie Perichon, Lyons, FR;
Bertrand Rousseau, Villeurbanne, FR;
JTEKT Europe, Irigny, FR;
Abstract
The invention relates to motor vehicles which are equipped with an electric power steering system. Using a known method, the value of the maximum current that is allowed to travel through the electric assist motor is calculated at each instant (t), and a threshold value is determined for said maximum calculated current. Once the value of the maximum calculated current at each instant reaches the threshold value, a gradually-decreasing percentage is applied to the assist current calculated as a function of the torque (C) applied to the steering wheel. In this way, the assist current is reduced before the assist motor thermal protection procedure is activated, such that the driver is not surprised by a sudden lack of power assistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile