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:
Sep. 04, 2012
Filed:
Jan. 25, 2008
Kai Borntraeger, Langenargen, DE;
Kai Borntraeger, Langenargen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A multi-speed planetary coupling transmission () which includes a plurality of planetary gear sets () and a plurality of shifting elements (A, B, D, E). Depending on actuation of the shifting elements (A, B, D, E), various gear ratios can be achieved by the transmission. At least one provided electric machine (EM) is functionally connected with one of the planetary gear sets (). From the electric machine (EM), a torque can be introduced, via a shaft (B) of the planetary gear set () associated with the electric machine (EM), in order to support torque acting on the associated planetary gear set () and achieve a gear ratio in the transmission () via the electric machine (EM).