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:
Jun. 16, 2026
Filed:
Jan. 13, 2023
Bingnan Wang, Belmont, MA (US);
Chungwei Lin, Arlington, MA (US);
Bingnan Wang, Belmont, MA (US);
Chungwei Lin, Arlington, MA (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A system and method for motor eccentricity fault detection is disclosed. The method includes extraction of fault-related features through topological data analysis (TDA) for motor current signals and apply them to motor eccentricity fault detection. The method further includes the procedure of obtaining topological features from time-domain data and representing them in persistence diagrams and vectorized Betti sequences. The method further includes the extraction of fault-related features from the obtained topological features of the data, which can be distinctively associated with not only fault type but also fault severity level. Further, the method includes use of machine learning models to extract fault-related features from TDA, for the prediction of motor eccentricity fault level, even for data from new eccentricity levels that are not seen in the training data.