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:
Feb. 13, 2007
Filed:
Oct. 25, 2005
Kenichi Wakabayashi, Kariya, JP;
Soichi Yoshinaga, Nagoya, JP;
Kenichi Wakabayashi, Kariya, JP;
Soichi Yoshinaga, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
An object of the present invention is to provide a motor control apparatus having excellent harmonic current control performance, that can simplify circuit configuration and circuit processing while, at the same time, achieving improved control accuracy. To achieve this object, detected motor currents are converted by coordinate convertersandinto an nth-order dq-axis signal and an mth-order dq-axis signal, and their DC components are extracted by low-pass filtersand; then, the differences of the DC components relative to respective command values are converted back into three-phase AC signals to control the motor currents.