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. 17, 2015
Filed:
Feb. 21, 2013
Masaya Endo, Chiyoda-ku, JP;
Isao Kezobo, Chiyoda-ku, JP;
Yoshihiko Kimpara, Chiyoda-ku, JP;
Jiro Okada, Chiyoda-ku, JP;
Masaya Endo, Chiyoda-ku, JP;
Isao Kezobo, Chiyoda-ku, JP;
Yoshihiko Kimpara, Chiyoda-ku, JP;
Jiro Okada, Chiyoda-ku, JP;
Mitsubishi Electronic Corporation, Tokyo, JP;
Abstract
Provided are a motor controller for suppressing a torque pulsation with a simple configuration and obtaining a sufficient output torque in the case of an open-type fault occurring in any one of windings of a motor and inverters, and an electric power steering device using the motor controller. In the motor controller for controlling a current supplied from and a voltage applied from a power source with respect to the motor including winding sets of a plurality of systems, when a fault determination unit () determines the occurrence of the open-type fault, the supply of the currents to the windings of one of the systems in which the fault has occurred is stopped by control performed on switching elements included in the inverter of the faulty system, whereas the supply of the currents to the windings of the normal system in which the fault has not occurred is continued.