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. 05, 2019
Filed:
Nov. 19, 2015
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Martin Brehmer, Tettnang, DE;
Matthias Horn, Tettnang, DE;
Peter Ziemer, Tettnang, DE;
Stefan Beck, Eriskirch, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
Julian King, Rankweil, AT;
Jens Moraw, Friedrichshafen, DE;
Eckehard Münch, Bünde, DE;
Juri Pawlakowitsch, Kressbronn, DE;
Stephan Scharr, Friedrichshafen, DE;
Viktor Warth, Friedrichshafen, DE;
Michael Wechs, Weiβensberg, DE;
Uwe Griesmeier, Markdorf, DE;
Raffael Kuberczyk, Ravensburg, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A transmission for a motor vehicle has an input shaft, output shaft, first and second minus planetary gear sets, and first electric machine with a rotationally fixed stator and a rotatable rotor connectable to the input shaft. The first planetary gear set is stepped and has planet gears of a larger and a smaller effective diameter. In the first planetary gear set, first sun gear engages the larger planet gears and is connected or connectable to the rotor; second sun gear engages the smaller planet gears and is connected to a sun gear of the second planetary gear set and connectable to the input shaft; a carrier is connected to a ring gear of the second planetary gear set; and a ring gear is rotationally fixable. In the second planetary gear set, the carrier is connectable to the input shaft and the ring gear is connected to the output shaft.