US Patent Issued to GM Global Technology Operations on Sept. 1 for "Selective motor derating using estimated internal temperature of inverter bulk capacitor" (Michigan Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,149, issued on Sept. 1, was assigned to GM Global Technology Operations LLC (Detroit).

"Selective motor derating using estimated internal temperature of inverter bulk capacitor" was invented by Dylan M. Day (Auburn Hills, Mich.), Matthew From (Royal Oak, Mich.), Young J. Kim (Troy, Mich.) and Daniel J. Berry (Macomb Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric drive system includes a direct current (DC) power supply, a rotary electric machine connectable to a load, a power inverter module (PIM), and a controller. The PIM includes a bulk capacitor connected to the DC power supply, along with a plurality of power switches...