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:
Feb. 22, 2022
Filed:
Dec. 05, 2018
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Martin Brehmer, Tettnang, DE;
Stefan Beck, Eriskirch, DE;
Anton Fritzer, Markdorf, DE;
Suryanto Hendrawan, Constance, DE;
Matthias Horn, Tettnang, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Raffael Kuberczyk, Ravensburg, DE;
Jens Moraw, Markdorf, DE;
Gerhard Niederbrucker, Friedrichshafen, DE;
Martin Rattay, Wernigerode, DE;
Matthias Reisch, Ravensburg, DE;
Wolfgang Rieger, Friedrichshafen, DE;
Thomas Rosemeier, Meckenbeuren, DE;
Lara Ruth Turner, Immenstaad, DE;
Bernd Unseld, Ravensburg, DE;
Viktor Warth, Friedrichshafen, DE;
Michael Wechs, Weißensberg, DE;
Peter Ziemer, Tettnang, DE;
Oliver Bayer, Hörbranz, AT;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A transmission (G) includes an input shaft (GW), an output shaft (GW), an electric machine (EM), a plurality of planetary gear sets (P-PP-P), and gear-implementing shift elements (S-SS-S). Via engagement of a first of the gear-implementing shift elements (SS), which is a force-locking shift element having a variable torque transmission capacity, the input shaft (GW) and an element (EE) of one of the planetary gear sets (PP) can be brought into a fixed rotational speed relationship with respect to each other. Another element (EEE) of one of the planetary gear sets (PPP) is permanently connected to a rotor (R) of the electric machine (EM). By engaging an auxiliary shift element (ZS,ZSa,ZSb), which is a form-locking shift element, the rotor (R) and the input shaft (GW) can be brought into a fixed rotational speed relationship with respect to each other.