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. 07, 2015
Filed:
Aug. 02, 2012
Uwe Griesmeier, Markdorf, DE;
Stephan Scharr, Friedrichshafen, DE;
Bernd Vahlensieck, Markdorf, DE;
Stefan Beck, Eriskirch, DE;
Christian Sibla, Friedrichshafen, DE;
Uwe Griesmeier, Markdorf, DE;
Stephan Scharr, Friedrichshafen, DE;
Bernd Vahlensieck, Markdorf, DE;
Stefan Beck, Eriskirch, DE;
Christian Sibla, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The invention relates to a planetary transmission for a hybrid drive of a motor vehicle, having three coupled planetary gear sets, having numerous shift elements, and having at least one electric machine, to which a shaft inside the transmission is allocated, wherein, with a first planetary gear set, the ring gear can be connected to a component permanently attached to the housing, and the planet carrier is connected in a driving manner to the ring gear of a second planetary gear set, wherein, with the second planetary gear set, the planet carrier is connected to the ring gear of a third planetary gear set, and the sun gear can be powered by a transmission input shaft, and wherein, with the third planetary gear set, the planet carrier is connected to a transmission output shaft. In order that the planetary transmission has a compact structure and is cost-effective in terms of its production, and is efficient in terms the operation thereof, it is provided that the sun gear of the first planetary gear set is connected to the component permanently attached to the housing, and that the sun gear of the third planetary gear set can be connected to the component permanently attached to the housing and to the ring gear of the first planetary gear set.