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:
Dec. 02, 2005
Reinhard Mertinkat, Mittelbiberach, DE;
Rainer Petzold, Friedrichsafen, DE;
Andreas Wolf, Ravensburg, DE;
Gerd Sauermann, Markdorf, DE;
Klaus Hensinger, Friedrichshafen, DE;
Wolfgang Gröner, Friedrichshafen, DE;
Ulrich Reith, Schlier, DE;
Reinhard Mertinkat, Mittelbiberach, DE;
Rainer Petzold, Friedrichsafen, DE;
Andreas Wolf, Ravensburg, DE;
Gerd Sauermann, Markdorf, DE;
Klaus Hensinger, Friedrichshafen, DE;
Wolfgang Gröner, Friedrichshafen, DE;
Ulrich Reith, Schlier, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A method for controlling a partially unsynchronized manual transmission, which realizes the increase of a rotational speed of a transmission part to be synchronized during a gear change procedure by connecting one element of the transmission, via a shiftable clutch, to a drive motor and by making available to this drive motor the required rotational speed as well as the necessary torque at its output shaft. It is also provided that when the rotational speed and/or the torque made available by the drive motor is not sufficient to ensure the synchronization of the manual transmission within a fixed time period, a shifting strategy is pursued, which prevents an unintentional holding of the manual transmission in its neutral position or idle position.