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. 21, 2020
Filed:
Oct. 04, 2016
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Florian Mayer, Wangen, DE;
Frank Deprez, Mariabrunn, DE;
Assignee:
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/06 (2006.01); F16D 25/12 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F16H 61/061 (2013.01); F16D 25/123 (2013.01); B60Y 2400/416 (2013.01); F16D 2500/1024 (2013.01); F16D 2500/1045 (2013.01); F16D 2500/3024 (2013.01); F16H 2061/0087 (2013.01); F16H 2061/062 (2013.01);
Abstract
A method for controlling a hydraulically actuated shift element of a vehicle transmission (G) includes determining a fill level of a pressure compensating cavity () associated with a pressure chamber () and controlling pressurizing of the pressure chamber () with hydraulic fluid based at least in part on the determined fill level of the pressure compensating cavity (). The pressure chamber () is fillable with the hydraulic fluid by an electronically controlled hydraulic system in order to actuate the shift element.