US Patent Issued to GM Global Technology Operations on Sept. 8 for "Induction electric motor with flux injection in multiple reference frames" (Michigan Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,074, issued on Sept. 8, was assigned to GM Global Technology Operations LLC (Detroit).

"Induction electric motor with flux injection in multiple reference frames" was invented by Vinod Chowdary Peddi (Shelby Township, Mich.) and Song He (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propulsion system for an electric vehicle includes an induction electric motor configured to generate torque for propulsion. The system includes a controller having a processor and tangible, non-transitory memory on which instructions are recorded for a method of suppressing tonal noises in a predefined motor speed range of the electric motor. The controll...