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:
Aug. 19, 2014
Filed:
Oct. 05, 2011
Yu Kawano, Chiyoda-ku, JP;
Masatoshi Saito, Chiyoda-ku, JP;
Takayuki Kifuku, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided is a motor control device including a main calculation unit (), which takes a first operation state for controlling a brushless motor (), and a second operation state for stopping the motor control, and a sub calculation unit () for monitoring the main calculation unit () by means of a first monitoring unit () in the first state, for calculating a motor rotation angle in the second state, thereby enabling continuous calculation of the motor rotation angle even when the motor control is stopped, for carrying out monitoring the sub calculation unit () by means of second monitoring unit (), thereby securing reliability, and for calculating the motor rotation angle in a second calculation cycle in the second operation state, the second calculation cycle being longer than a first calculation cycle in the first operation state, thereby reducing a current consumption.