US Patent Issued to GM Global Technology Operations on March 11 for "In-situ inverter capacitance analyses and degradation alerts using variable operational modes of electric motor" (Michigan Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,944, issued on March 11, was assigned to GM Global Technology Operations LLC (Detroit).

"In-situ inverter capacitance analyses and degradation alerts using variable operational modes of electric motor" was invented by Muhammad H. Alvi (Troy, Mich.), Khorshed Mohammed Alam (Canton, Mich.), Jiyu Zhang (Sterling Heights, Mich.), Chunhao J. Lee (Troy, Mich.) and Brian A. Welchko (Oakland Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatus and techniques for analyzing a capacitance value in an electric motor inverter are disclosed. A processor is coupled to a DC-AC inverter, which includes a capacitor across its terminals and is pow...