US Patent Issued to Rivian IP Holdings on May 20 for "Magnet-assisted wound rotor for electric motor" (California, Michigan Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,715, issued on May 20, was assigned to Rivian IP Holdings LLC (Irvine, Calif.).

"Magnet-assisted wound rotor for electric motor" was invented by Yanyan Xie (Ranchos Palos Verdes, Calif.) and Khwaja Rahman (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the subject disclosure relate to an electric motor that includes a rotor with both permanent magnets and operable coils. The coils of the rotor can be operated to generate a temporary magnetic field that supplements the permanent magnetic field of the permanent magnets. Accordingly, the amount of torque output by the rotor can be controlled by operating the coils of the rotor as...