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. 13, 2011
Filed:
Mar. 27, 2007
Applicants:
Hiroki Ohtani, Aichi-ken, JP;
Makoto Nakamura, Okazaki, JP;
Kenji Yamada, Toyota, JP;
Masaki Okamura, Toyota, JP;
Hideto Hanada, Toyota, JP;
Inventors:
Hiroki Ohtani, Aichi-ken, JP;
Makoto Nakamura, Okazaki, JP;
Kenji Yamada, Toyota, JP;
Masaki Okamura, Toyota, JP;
Hideto Hanada, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 3/18 (2006.01); H02P 25/00 (2006.01); H02P 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An AC motor drive control device includes a control mode judgment unit that performs a judgment based on required voltage amplitude required by a synchronous AC motor, in order to switch units for applying voltage to the AC motor to one of a rectangular wave voltage phase control unit, an overmodulation control unit, and a PWM current control unit.