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. 11, 2016
Filed:
Jan. 06, 2015
Applicant:
Cessna Aircraft Company, Wichita, KS (US);
Inventors:
Steven G. Hagerott, Wichita, KS (US);
Stephen M. Eddy, Derby, KS (US);
Utbah Masud, Wichita, KS (US);
Assignee:
Textron Innovations Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 1/00 (2006.01); B64C 13/16 (2006.01); G05D 1/08 (2006.01);
U.S. Cl.
CPC ...
B64C 13/16 (2013.01); G05D 1/0816 (2013.01);
Abstract
Systems and methods are described for automatically counteracting undesirable aircraft movement caused by malfunctioning fly-by-wire aircraft control surfaces, hardover events, control surface disconnection, and other control surface failure events. The systems and methods include control law algorithms for reacting to such events to counteract the undesired aircraft movement. An expected roll rate is generated based on control input and compared to the actual roll rate of the aircraft.