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:
Apr. 01, 2014
Filed:
Jun. 21, 2010
Shinsuke Terada, Ikoma, JP;
Hideki Higashira, Ikoma, JP;
Yasuyuki Yoshii, Souraku-gun, JP;
Naoki Maeda, Kashihara, JP;
Shirou Nakano, Minamikawachi-gun, JP;
Shinsuke Terada, Ikoma, JP;
Hideki Higashira, Ikoma, JP;
Yasuyuki Yoshii, Souraku-gun, JP;
Naoki Maeda, Kashihara, JP;
Shirou Nakano, Minamikawachi-gun, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A controller applies slight rotational torque to a drive gear of a reduction mechanism also in a predetermined range in which a motor does not produce any steering operation assist force. That is, the motor is caused to produce slight rotational torque not enough to drive a driven gear, and the rotational torque direction is reversed under a given condition. Accordingly, a backlash between the drive gear and the driven gear is eliminated.