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:
May. 31, 2011
Filed:
Jan. 09, 2009
Applicants:
Keisuke Nishimura, Anjyo, JP;
Masuho Sakakibara, Obu, JP;
Yoshinari Nakagawa, Isshiki, JP;
Yoshinori Oono, Kota, JP;
Inventors:
Keisuke Nishimura, Anjyo, JP;
Masuho Sakakibara, Obu, JP;
Yoshinari Nakagawa, Isshiki, JP;
Yoshinori Oono, Kota, JP;
Assignee:
Aisin A W Co., Ltd., Anjo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 29/06 (2006.01); H02P 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rotating electrical machine control device includes an inverter; a resolver; a unit; a three-phase/two-phase modulation switching unit; and a motor control unit that switches to a two-phase modulation in a specific region where an electric noise given to the resolver by a rotating electrical machine is large, even in a region where the modulation ratio is smaller than the three-phase/two-phase modulation switching boundary.