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:
Oct. 27, 2015
Filed:
Aug. 21, 2014
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Assignee:
ZF Friedrichshafen AG, Dority & Manning, P.A., DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/16 (2006.01); F16H 61/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/16 (2013.01); F16H 61/0204 (2013.01); F16H 2200/2094 (2013.01);
Abstract
A method for terminating a gearshift for an automatic transmission for a motor vehicle is provided, wherein a positive-locking shifting element is involved. After the initiation of the gearshift, there is an evaluation of the continuous signals of at least one control unit of the vehicle, which affect the engine torque and thus the turbine speed gradient. Based on the evaluation of the signals, an upcoming change to the turbine speed gradient that exceeds a first predetermined threshold value or falls short of a second predetermined threshold value is detected, and, upon such detection, the gearshift is terminated.