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:
Aug. 19, 2014
Filed:
Mar. 03, 2011
Florian Schneider, Lindenberg, DE;
Roland Mair, Tettnang, DE;
Florian Schneider, Lindenberg, DE;
Roland Mair, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method of operating a powertrain may include providing an automatic transmission disposed between a drive unit and an axle drive. One input shaft of the automatic transmission is connected by means of an operable clutch to the drive unit and an output shaft of the automatic transmission is connected to the axle drive. A transmission-side, mobile auxiliary drive is configured to couple with a transmission-side connection. The transmission-side connection point for the auxiliary drive is decoupled from the axle drive and, at least partially from the drive unit. The rotational rate of the transmission-side connection point for the auxiliary drive and the auxiliary drive are synchronized, whereby the auxiliary drive is coupled to the connection point. The transmission-side connection point for the auxiliary drive, and thereby the auxiliary drive, is coupled to the drive unit as well as the axle drive.