ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,838, issued on April 7, was assigned to GKN Automotive Ltd. (Birmingham, Great Britain).
"Method of modulation of torque by vehicle propulsion motor" was invented by Hideyuki Inose (Tochigi City, Japan) and Yuu Yaguchi (Tochigi City, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for modulating torque of a vehicle propulsion motor driven by first, second and third cyclic currents mutually shifted by electrical angles of 120 degrees and applied in accordance with a rotating magnetic field by a rotor is provided with: applying pulse-width modulated voltage pulses respectively to switching devices to generate the first, second and third ...