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. 22, 2016
Filed:
Jun. 09, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Yuya Hisano, Tokyo, JP;
Ryo Nakamura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An electric motor control device includes a torque command generation portion that outputs a torque command τc generated on the basis of a rotation speed R and specifying an output torque, a minimum energization point number generation portion that generates a minimum number of energization points, Nmin, indicating the minimum number of points to be energized in windings of an armature and a field on the basis of the rotation speed R and the torque command τc, an energization signal generation portion that outputs an energization signal S on the basis of a state quantity M of an electric motor, the minimum number of energization points, Nmin, the torque command τc, a DC voltage value Vdc, a current value I, and a field position θ, and an energization portion that energizes an armature winding and a field winding according to the energization signal S.