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:
Aug. 02, 2011
Filed:
Apr. 20, 2006
Isao Kezobo, Tokyo, JP;
Masahiro Kimata, Tokyo, JP;
Takayuki Kifuku, Tokyo, JP;
Kazumichi Tsutsumi, Tokyo, JP;
Chiaki Fujimoto, Tokyo, JP;
Noriyuki Inoue, Tokyo, JP;
Isao Kezobo, Tokyo, JP;
Masahiro Kimata, Tokyo, JP;
Takayuki Kifuku, Tokyo, JP;
Kazumichi Tsutsumi, Tokyo, JP;
Chiaki Fujimoto, Tokyo, JP;
Noriyuki Inoue, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control apparatus for a multiphase AC electric motor having an inverter includes a current control including an abnormal-state current controller; an abnormal-state detector that detects an abnormal state of any of a wire of an electric motor, a wire of an inverter, and a wire connecting the electric motor to the inverter as an abnormal phase; and an abnormal phase disconnect. The abnormal phase disconnect disconnects one or more of phases detected to be in an abnormal-state and the abnormal-state current controller generates an abnormal state voltage command in accordance with detection of an abnormal state, and uses phases other than the disconnected phases of the inverter to control individual currents of the phases, with the abnormal-state voltage command used as a multiphase voltage command.