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:
Jul. 14, 2026
Filed:
Dec. 20, 2022
Nsk Steering & Control, Inc., Tokyo, JP;
Takahiro Tsubaki, Gunma, JP;
Takayuki Koiso, Gunma, JP;
NSK STEERING & CONTROL, INC., Tokyo, JP;
Abstract
A control device of a vehicle steering system capable of obtaining a steering feeling reflecting a situation of a road surface and a state of a vehicle. The control device includes: a current compensation value generation unit configured to generate a reaction force motor current compensation value increasing or decreasing depending on a road surface reaction force torque estimation value estimated based on at least a first turning motor current command value; and a gain ratio generation unit configured to generate a first gain increasing or decreasing depending on a vehicle speed Vs of a vehicle, and a second gain having a sum of the first gain (Ga) and the second gain of 1.