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. 05, 2016
Filed:
Oct. 13, 2014
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Assignee:
ZF FRIEDRICHSHAFEN AG, Friedshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/44 (2006.01); F16H 61/04 (2006.01); F16H 61/14 (2006.01);
U.S. Cl.
CPC ...
F16H 61/0403 (2013.01); F16H 61/0437 (2013.01); F16H 61/143 (2013.01); F16H 2061/0455 (2013.01); F16H 2061/146 (2013.01); F16H 2200/0065 (2013.01);
Abstract
A method for operating an automatic transmission is provided. The method includes synchronizing a first positive shifting element of the at least one positive shifting element with a first process, a second process or a third process depending upon an input speed and/or an output speed of the automatic transmission. The first process, the second process and the third process can provide smooth and/or satisfactory shifting of the first positive shifting element at various input speeds and output speeds of the automatic transmission.