ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,990, issued on June 9, was assigned to DeepDrive GmbH (Garching bei Munchen, Germany).
"Electrical drive system and method" was invented by Alexander Rosen (Osnabruck, Germany), Christopher Rommelmayer (Furstenfeldbruck, Germany) and Maximilian Habersbrunner (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an electrical drive system for or in a motor-vehicle, having at least one multi-phase electric machine, which has a double rotor, wherein the double rotor is made from flux-guiding material made of solid material, with a three-stage or multi-stage inverter circuit for driving the electric machine, which has: a...