ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,831, issued on Oct. 21, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).
"Motor system control" was invented by Muhammad Hussain Alvi (Troy, Mich.), Suresh Gopalakrishnan (Troy, Mich.), Alireza Fatemi (Canton, Mich.), Renato Amorim Torres (Pontiac, Mich.), Chunhao J. Lee (Troy, Mich.) and Junghoon Kim (Ann Arbor, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motor system includes a rechargeable energy storage system, an alternating current motor, and a power inverter. Multiple efficiency maps may be provided, each representing a specific combination of control parameters and associated settings. The maps relate the motor's ope...