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. 20, 2026
Filed:
Nov. 22, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Yasuhiko Wada, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A motor controller is provided with degradation estimation circuitry configured to calculate an estimated degradation level obtained by estimating a degradation level of a device on which a motor is mounted or a degradation level of an inverter; operation decision circuitry configured to compare the estimated degradation level and a reference degradation level, which is predetermined, and set an operation mode of the motor, in a case in which the estimated degradation level is lower than the reference degradation level, to an normal operation, and set the operation mode, in a case in which the estimated degradation level is higher than or equal to the reference degradation level, to a low-noise pulse operation; and control circuitry configured to control the inverter according to the operation mode. The low-noise pulse operation is designed to reduce switching loss to be less than does the normal operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile