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.

Date of Patent:
May. 30, 2023

Filed:

Feb. 26, 2020
Applicants:

Jtekt Corporation, Osaka, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Takashi Kodera, Okazaki, JP;

Isao Namikawa, Okazaki, JP;

Yusuke Kakimoto, Okazaki, JP;

Yoshio Kudo, Machida, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01); B62D 5/00 (2006.01);
U.S. Cl.
CPC ...
B62D 5/0463 (2013.01); B62D 5/0424 (2013.01); B62D 5/006 (2013.01);
Abstract

A steering control device for a steering system includes an electronic control unit configured to: calculate target torque that is a target value of the motor torque; control operation of the motor; calculate a vehicle speed basic axial force based on a detected vehicle speed; calculate another state quantity basic axial force based on a state quantity other than the detected vehicle speed; calculate a distributed axial force by adding the vehicle speed basic axial force and the other state quantity basic axial force at individually set distribution ratios; calculate the target torque based on the distributed axial force; and reduce the distribution ratio of the vehicle speed basic axial force when the detected vehicle speed is abnormal as compared to when the detected vehicle speed is normal.


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