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:
May. 22, 2012
Filed:
Dec. 08, 2008
Thomas Rosemeier, Meckenbeuren, DE;
Bernd-robert Hohn, Munich, DE;
Christoph Pelchen, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission device with at least two output shafts and at least two multi-shaft planetary gearsets that are actively connected with one another. A shaft of a planetary gearset can be actively connected with an output shaft. In addition, a shifting mechanism, located between the two output shafts, shifts between a first power path or a second power path. In one of the planetary gearsets, torque from an electric machine can be transmitted along either the first or the second power path. In the first power path, torque from the electric machine is transmitted to the two output shafts in equal parts and with the same sign. In the second power path, torque is transmitted to the two output shafts in equal parts but with opposite signs. The planetary gearset, in the area of which the torque from the electric machine can be transmitted, is a simple negative planetary gearset.