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:
Oct. 14, 2014
Filed:
Jun. 29, 2009
Yuji Kariatsumari, Yamatotakada, JP;
Hideki Higashira, Ikoma, JP;
Masashi Hattori, Nara, JP;
Yoshinobu Shimizu, Sakai, JP;
Yuji Kariatsumari, Yamatotakada, JP;
Hideki Higashira, Ikoma, JP;
Masashi Hattori, Nara, JP;
Yoshinobu Shimizu, Sakai, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A motor controller controls a motor including a rotor and a stator opposed to the rotor. The motor controller includes an electric current driving unit which drives the motor with an axis electric current value defined in a rotating coordinate system defined with respect to a control angle that is a rotation angle for control, a control angle computing unit which computes a current value of the control angle by adding an addition angle to a previous value of the control angle in each predetermined computing cycle, and an addition angle computing unit which computes the addition angle according to a torque to be generated by the motor or a response of the motor to the axis electric current value.