US Patent Issued to ZF Friedrichshafen on Oct. 27 for "Method for operating a drive system of a motor vehicle and drive system" (German Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. RE51,090, issued on Oct. 27, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).

"Method for operating a drive system of a motor vehicle and drive system" was invented by Johannes Kaltenbach (Friedrichshafen, Germany), Fabian Kutter (Kressbronn, Germany), Stefan Beck (Eriskirch, Germany), Matthias Horn (Tettnang, Germany), Uwe Griesmeier (Markdorf, Germany) and Michael Roske (Friedrichshafen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive system (1) of a motor vehicle includes a first planetary gear set (2), a first electric machine (13) coupled to a ring gear (5) of the first planetary gear set (2) directly or indirectly via ...