ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,877, issued on Sept. 15, was assigned to GM Global Technology Operations LLC (Detroit).

"Method and system for controlling an electric machine" was invented by Tanvi Nagarale (Auburn Hills, Mich.), Brent S. Gagas (Pleasant Ridge, Mich.) and Brian A. Welchko (Oakland Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control system for a rotary electric machine includes an inverter including a plurality of power switches, a heat exchanger, first temperature sensors arranged to monitor the power switches, a second temperature sensor arranged to monitor the heat exchanger, and a controller. An expected power loss is determined based upon...