ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,447, issued on Oct. 14, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).
"Method and control device for operating a transmission" was invented by Clemens Moser (Mittelberg, Austria), Mario Hasel (Wangen, Germany), Alexander Haberstock (Ravensburg, Germany) and Anshuman Deshpande (Friedrichshafen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a motor vehicle having a transmission including a hydraulic system with a dual-circuit pump includes driving the dual-circuit pump by both an internal combustion engine and an electric machine via a superposition gear unit that superimposes a rotational speed of t...