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. 30, 2026
Filed:
Oct. 01, 2021
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
University of Connecticut, Farmington, CT (US);
Krishna Pattipati, Farmington, CT (US);
Muhamed K. Farooq, Ann Arbor, MI (US);
Qian Yang, Farmington, CT (US);
Ali Bazzi, Farmington, CT (US);
Shailesh N. Joshi, Ann Arbor, MI (US);
Hiroshi Ukegawa, South Lyon, MI (US);
TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US);
University of Connecticut, Farmington, CT (US);
Abstract
Systems and methods are disclosed for performing fault detection and prediction for power electronics and switching devices for power electronics, such as power inverters. Systems and methods disclosed herein can include determining, by a partial least squares model that evaluates values for one or more switching parameters for a switching device, the one or more switching parameters selected from a first set of switching parameters, a predicted value for the on-state current Iof the switching device. The predicted value for the on-state current Ican be based on the values of the one or more switching parameters for the switching device. Systems and methods disclosed herein can determine a residual comprising the difference between the predicted value for the another switching parameter of the switching device and an actual value of the predicted value for the another switching parameter, and generate a test statistic based on the residual.