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:
Apr. 18, 2017
Filed:
Oct. 11, 2012
Yasufumi Ogawa, Tokyo, JP;
Keiichi Enoki, Tokyo, JP;
Nobuhide Mori, Tokyo, JP;
Hiroyuki Kobayashi, Hyogo, JP;
Yasufumi Ogawa, Tokyo, JP;
Keiichi Enoki, Tokyo, JP;
Nobuhide Mori, Tokyo, JP;
Hiroyuki Kobayashi, Hyogo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In order to highly accurately estimate a temperature of a permanent magnet to be used for a rotor of a motor, provided is a motor control device for a vehicle including a motor as a drive power source, in which an estimation mode setting section sets, when a predetermined condition for estimating the temperature of the permanent magnet to be used for the rotor of the motor is established under a state in which the motor generates drive power to run the vehicle, a current flowing through the motor to 0, and a permanent magnet temperature estimation section estimates the temperature of the permanent magnet based on an induced voltage of the motor in a period during which the current flowing through the motor is 0.