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:
Mar. 05, 2013
Filed:
Aug. 12, 2010
Mitsuru Nakamura, Anjo, JP;
Arinori Shimada, Anjo, JP;
Subrata Saha, Anjo, JP;
Ken Iwatsuki, Anjo, JP;
Zhiqian Chen, Anjo, JP;
Mitsuru Nakamura, Anjo, JP;
Arinori Shimada, Anjo, JP;
Subrata Saha, Anjo, JP;
Ken Iwatsuki, Anjo, JP;
Zhiqian Chen, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A control device that controls an electric motor drive device. The control device is configured with a first voltage control section that derives a modulation rate representing a ratio of an effective value of the voltage command values to the DC voltage and a voltage command phase. A second voltage control section generates a control signal for controlling the DC/AC conversion section on the basis of the modulation rate, the voltage command phase, and a magnetic pole position representing a rotational angle of a rotator of the AC electric motor. A computation cycle of the first voltage control section is set to be longer than a computation cycle of the second voltage control section.