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. 20, 2010
Filed:
Jul. 06, 2007
Gabor Diosi, Friedrichshafen, DE;
Josef Haupt, Tettnang, DE;
Peter Ziemer, Tettnang, DE;
Pedro Casals, Tettnang-Kau, DE;
Martin Brehmer, Constance, DE;
Gabor Diosi, Friedrichshafen, DE;
Josef Haupt, Tettnang, DE;
Peter Ziemer, Tettnang, DE;
Pedro Casals, Tettnang-Kau, DE;
Martin Brehmer, Constance, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A multi-speed automatic planetary transmission for a motor vehicle having an input shaft (AN), an output shaft (AB), four planetary gearsets (RS, RS, RS, RS), at least eight rotatable shafts (), and five shifting elements (A, B, C, D, E), the selective engagement of which produces different transmission ratios between the input shaft (AN) and the output shaft (AB), such that eight forward gears and at least one reverse gear are possible. Further, it is possible to connect an electric machine () as generator and/or drive, to the fifth shaft () by means a drive connection.