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. 10, 2014
Filed:
Jan. 24, 2013
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Jorg Arnold, Immenstaad, DE;
Michael Sohler, Isny, DE;
Klaus Steinhauser, Kressbronn, DE;
Thilo Schmidt, Meckenbeuren, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/12 (2010.01);
U.S. Cl.
CPC ...
F16H 61/12 (2013.01);
Abstract
A method of monitoring an emergency condition in an automatic transmission, with which, by comparing a theoretical with an actual rotational speed, measured on the transmission input side, overlap of the activated emergency condition, with a gear engagement process called for during the normal condition, is prevented.