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:
Dec. 16, 2025
Filed:
Aug. 24, 2023
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventor:
Jonas Knör, Erbach, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/04 (2006.01);
U.S. Cl.
CPC ...
F16H 61/0403 (2013.01); F16H 2061/0422 (2013.01);
Abstract
A method for operating a drive train () of a vehicle monitoring the actual slip forming at a particular first shift element of a transmission (), comparing the actual slip with a target slip, adapting a characteristic map depending on a deviation between the actual slip and the target slip. The characteristic map is used to determine a shift-element pressure for providing the target slip for a particular first shift element in order to implement a gear ratio change.