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:
Jul. 31, 2012

Filed:

Oct. 21, 2008
Applicants:

Takehito Fujii, Anjo, JP;

Motoaki Kataoka, Kariya, JP;

Kunihiko Chiba, Kuwana, JP;

Daiji Watanabe, Chiryu, JP;

Inventors:

Takehito Fujii, Anjo, JP;

Motoaki Kataoka, Kariya, JP;

Kunihiko Chiba, Kuwana, JP;

Daiji Watanabe, Chiryu, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 5/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A correction value calculating sectionis provided with a pinion shaft torsion angle correction value calculating sectionand a pinion shaft torsion angular velocity correction value calculating sectionfor calculating a correction value in consideration with the transmission characteristic of the steering assist torque from the electric motorto the steerable vehicle wheel. Therefore, the electric motorcan generate the steering assist torque compensating for the influence by the transmission characteristic of the steering assist torque from the electric motorto the steerable vehicle wheelby correcting a target value defined by a detection value of the torque sensorwith the correction value.


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