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:
Mar. 22, 2016
Filed:
Apr. 08, 2014
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Kai Borntraeger, Langenargen, DE;
Bernard Hunold, Friedrichshafen, DE;
Johannes Kaltenbach, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A motor vehicle powershift transmission which comprising two partial transmissions (TG, TG) each with a respective input shaft (GE, GE) that can be drivingly connected, via a main separator clutch (CL, CL; CL', CL′; CL*, CL*), with the driveshaft (TW) of a drive engine (VM) and, on the output side, with a common output shaft (GA). To enable powershifts without frictional slipping, the two input shafts (GE, GE), on the input side, can be connected to and disconnected from a respective intermediate shaft (ZW, ZW) by the respective main separator clutch (CL, CL; CL′, CL′; CL*, CL*). The first intermediate shaft (ZW) is directly connected to the driveshaft (TW) and the second intermediate shaft (ZW) is in driving connection with the first intermediate shaft (ZW) by way of a variator (V) which has a continuously adjustable transmission ratio (i) and a rest transmission ratio having the value one i=1).