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:
Jun. 04, 2024
Filed:
Aug. 01, 2022
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/14 (2006.01); F16D 48/06 (2006.01); F16H 59/40 (2006.01); F16H 59/44 (2006.01); F16H 59/46 (2006.01); F16H 59/70 (2006.01); F16H 59/36 (2006.01);
U.S. Cl.
CPC ...
F16H 61/143 (2013.01); F16D 48/06 (2013.01); F16H 59/40 (2013.01); F16H 59/44 (2013.01); F16H 59/46 (2013.01); F16H 59/70 (2013.01); F16D 2500/10412 (2013.01); F16D 2500/3067 (2013.01); F16D 2500/30806 (2013.01); F16D 2500/30825 (2013.01); F16D 2500/3108 (2013.01); F16H 2059/366 (2013.01);
Abstract
The invention relates to the actuation of a converter lock-up clutch () of a hydrodynamic torque converter () in a vehicle drive-train by means of a safety function where, in addition to a driving strategy function, the safety function can actuate the converter lock-up clutch () by issuing a clutch actuation command. For this purpose, at least one rotation speed at the torque converter () is monitored. If the monitored rotation speed is below a rotation speed threshold, the safety function commands an actuation of the converter lock-up clutch () in its opening direction.