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:
Sep. 12, 2006
Filed:
Jan. 14, 2004
Ralf Dreibholz, Meckenbeuren, DE;
Michael Ebenhoch, Friedrichshafen, DE;
Ralf Dreibholz, Meckenbeuren, DE;
Michael Ebenhoch, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The control of a shifting component () of a stepped automatic transmission is designed with one frictionally engaged element () and one form-locking element (). When this shifting component () is engaged, a transmitting capacity of the frictionally engaged element () is first adjusted and when a synchronous state of the form-locking element () exists, the form-locking element () is closed. When the form-locking element () is closed, a transmitting capacity of the frictionally engaged element () is reduced. In case of a demand for disengaging the shifting component () before opening under load, the form-locking element () and the transmitting capacity of the frictionally engaged element () is increased so that a power flow, which is conveyed via the closed form-locking element () of the shifting component (), can be conveyed via the frictionally engaged element when the form-locking element () is open.