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. 23, 2019
Filed:
Sep. 25, 2017
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Marcus Hiemer, Meckenbeuren, DE;
Jürgen Legner, Friedrichshafen, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/4017 (2010.01); F16H 47/02 (2006.01); F16H 61/478 (2010.01); F16H 59/18 (2006.01); F16H 59/70 (2006.01); F16H 59/68 (2006.01); F16H 59/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/4017 (2013.01); F16H 47/02 (2013.01); F16H 61/478 (2013.01); F16H 59/18 (2013.01); F16H 59/70 (2013.01); F16H 2059/0221 (2013.01); F16H 2059/6838 (2013.01); F16H 2059/704 (2013.01);
Abstract
A device for controlling a gear ratio of a hydrostatic mechanical power-split transmission comprises an input switch () which, when rotated, produces a particular transmission characteristic and, at the same time, limits the maximum pressure. The selected position of the input switch () selects a particular maximum pressure curve from a large number of stored maximum pressure curves.