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:
Sep. 06, 2016
Filed:
Oct. 01, 2012
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Yoshiki Kato, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
This motor control device generates a voltage command value from a current command value and performs feedback control by means of a detected current flowing through a motor. The motor control device is provided with: a correction control unit that, when the motor is being rotated at a set speed, sets a d-axis current command value and a q-axis current command value to each be zero; a current control unit that generates the integrated value of the deviation between the current command value and the detected current; and an integrated value measurement unit that measures the generated integrated value. The correction control unit adjusts the correction value for the rotational position of the motor by adjusting in a manner so that the measured integrated value becomes a value within a pre-determined range.