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:
Oct. 29, 2024
Filed:
Oct. 13, 2020
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Yasuhiko Wada, Tokyo, JP;
Kazunori Sakanobe, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 13/04 (2019.01); G01N 3/56 (2006.01); H02P 21/14 (2016.01); H02P 27/06 (2006.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
G01M 13/04 (2013.01); G01N 3/56 (2013.01); H02P 21/14 (2013.01); H02P 27/06 (2013.01); H02P 29/024 (2013.01);
Abstract
A failure diagnosis apparatus includes a controller to control drive of a motor, a wear estimator to estimate an amount of wear of a bearing of the motor based on a current that flows in the motor, and a failure notification unit to diagnose a failure of the motor based on the amount of wear of the bearing of the motor estimated by the wear estimator and to notify a user. When the wear estimator estimates the amount of wear of the bearing of the motor, the controller controls drive of the motor such that the motor is driven in a constant state.