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:
Feb. 18, 2020
Filed:
Apr. 11, 2017
Applicant:
Sikorsky Aircraft Corporation, Stratford, CT (US);
Inventors:
Anthony Litwinowicz, Derby, CT (US);
Kenneth S. Wittmer, Sandy Hook, CT (US);
Assignee:
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 13/04 (2006.01); B64C 13/08 (2006.01); B64C 27/57 (2006.01);
U.S. Cl.
CPC ...
B64C 13/0421 (2018.01); B64C 13/044 (2018.01); B64C 13/08 (2013.01); B64C 27/57 (2013.01);
Abstract
A flight control system includes a flight control computer operable in a flight state and a ground state. A high demand trim relief logic is operable by the flight control computer in the ground state. The high demand trim relief logic is configured to automatically modify the neutral position of a rotor when a command input to the flight control computer to control the rotor is near an allowable limit.