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:
Mar. 17, 2020

Filed:

Aug. 24, 2017
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Yosuke Hirate, Kariya, JP;

Daiji Watanabe, Kariya, JP;

Hisaya Akatsuka, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01); B62D 5/00 (2006.01); B62D 6/00 (2006.01);
U.S. Cl.
CPC ...
B62D 5/0463 (2013.01); B62D 5/008 (2013.01); B62D 5/0481 (2013.01); B62D 6/00 (2013.01);
Abstract

A motor controller of a steering control apparatus is configured to drive, based on an assist command and a tracking command, a motor to thereby generate assist torque and automatic steering torque. A state determiner of the steering control apparatus is configured to determine at least whether a driver's steering state is a biased steering state or a return steering state in accordance with a first parameter associated with steering torque based on the driver's steering, and a second parameter associated with an angular velocity of the motor. A ratio changer of the steering control apparatus is configured to change a ratio of the assist torque to the automatic steering torque in accordance with a determination result of the state determiner.


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