ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,870, issued on Sept. 30, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).
"Methods and system for improving electric machine efficiency" was invented by Chris Wolf (Ann Arbor, Mich.), Michael Degner (Novi, Mich.) and Yue Nie (Ann Arbor, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in frequency as a function of time when a driver of a vehicle requests a constant driver demand torque."
The patent was filed on ...