The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Jan. 25, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Rayk Gersten, Friedrichshafen, DE;
Stefan Renner, Bodman-Ludwigshafen, DE;
Johannes Glückler, Friedrichshafen, DE;
Christian Mittelberger, Ravensburg, DE;
Kai Bornträger, Langenargen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A transmission for a hybrid drive having transmission input and output shafts, a further transmission input shaft and an electric machine, which drives the further transmission input shaft. A main transmission has first and second partial transmissions with a plurality of gear planes and a pair of concentric fourth shafts, and shift elements. A range group can couple the main transmission and has a planetary gearset with three transmission elements. The first element can couple either of the transmission input shafts via the shift elements. The second element is connected to the transmission output shaft and can couple a gear plane of the partial transmissions via the shift elements. The third transmission element can be fixed to the housing or blocked against the first or second transmission element.