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:
Feb. 17, 2026
Filed:
Jul. 09, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Kento Ogiwara, Tokyo, JP;
Chiaki Fujimoto, Tokyo, JP;
Seiji Sawada, Tokyo, JP;
Yuta Maeda, Kobe, JP;
Motohiro Norikawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A motor control device includes: a motor driver that supplies electric power to a motor having windings of plural phases, the motor driver including, for each phase, an upper drive element and a lower drive element connected in series; a motor terminal voltage detector that detects a motor terminal voltage value based on a voltage of a motor terminal for each phase of the motor; a drive element fault determinator that performs fault determination for the upper drive elements and the lower drive elements, based on a voltage value across each drive element, and outputs a result of the fault determination; and a short/open-circuit fault determinator that, when the result of the fault determination indicates that there is a fault, determines whether the fault is a short-circuit fault or an open-circuit fault, for the upper drive elements and the lower drive elements, based on the motor terminal voltage value.