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:
Jul. 15, 2025
Filed:
Apr. 24, 2024
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16H 47/06 (2006.01); F16H 59/72 (2006.01); F16H 61/00 (2006.01); F16H 61/16 (2006.01);
U.S. Cl.
CPC ...
F16H 61/16 (2013.01); F16H 47/06 (2013.01); F16H 57/0413 (2013.01); F16H 59/72 (2013.01); F16H 61/0059 (2013.01);
Abstract
The present invention relates to a method for heating a transmission () for a working machine having a plurality of hydraulically actuated shifting elements (). The method involves the sending (III) of a closing signal for closing shifting elements () in order to block the transmission (). In addition, the method entails pulsed actuation (V) for opening and closing of at least one of the closed shifting elements () while the transmission () remains blocked. Furthermore, the present invention relates to a control unit which is designed to carry out such a method, and to a transmission for a working machine with such a control unit.