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:
Jan. 20, 2009
Filed:
Oct. 02, 2004
Detlef Baasch, Friedrichshafen, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Christoph Pelchen, Tettnang, DE;
Barbara Schmohl, Friedrichshafen, DE;
Ulrich Mair, Friedrichshafen, DE;
Thomas Rosemeier, Meckenbeuren, DE;
Detlef Baasch, Friedrichshafen, DE;
Gerhard Gumpoltsberger, Friedrichshafen, DE;
Christoph Pelchen, Tettnang, DE;
Barbara Schmohl, Friedrichshafen, DE;
Ulrich Mair, Friedrichshafen, DE;
Thomas Rosemeier, Meckenbeuren, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission for distributing a drive torque between at least two drive output shafts with at least two planetary gearsets, each having at least three-shafts. In each case, a shaft of a planetary gearset is connected to a drive input shaft and a second respective shaft of a planetary gearsets is the drive output shafts. A respective third shaft of the planetary gearsets communicates with a brake such that a degree of distribution of the drive torque between the two output shafts varies as a function of the transfer capacities of the brakes. A transmission device controls and regulates a drive torque from a drive engine between the two output shafts of the transmission device. The transfer capacities of the two brakes are adjusted such that one brake is in a synchronous condition and the transfer capacity of the other brake is varied between a lower and an upper limiting value.