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.

Date of Patent:
Jan. 18, 2011

Filed:

Mar. 31, 2008
Applicants:

Hirofumi Atarashi, Wako, JP;

Shoei Abe, Wako, JP;

Keiichi Yamamoto, Wako, JP;

Shigeru Tajima, Wako, JP;

Inventors:

Hirofumi Atarashi, Wako, JP;

Shoei Abe, Wako, JP;

Keiichi Yamamoto, Wako, JP;

Shigeru Tajima, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 25/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A controller of an electric motor for improving operation efficiency in performing electric conducting control of the electric motor of an axial air-gap type is provided. Therefore, the controller of the electric motor () of the axial air-gap type including a rotor () having a permanent magnet, a first stator () and a second stator () oppositely arranged through the rotor () in a rotation axis direction of the rotor (), and armature windings () mounted to the first stator () and the second stator () has an electric current command determining section () for switching between a both-side stator driving mode for conducting a driving electric current to both the armature winding () of the first stator () and the armature winding () of the second stator (), and a one-side stator driving mode for conducting the driving electric current to only the armature winding () of the first stator () in accordance with a request value Tr_c of output torque of the electric motor ().


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