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:
Jul. 16, 2019
Filed:
Jul. 17, 2015
Applicant:
Sikorsky Aircraft Corporation, Stratford, CT (US);
Inventors:
Igor Cherepinsky, Sandy Hook, CT (US);
Joseph T. Driscoll, Prospect, CT (US);
Assignee:
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 1/06 (2006.01); B64C 27/57 (2006.01); B64C 13/50 (2006.01); B64C 27/06 (2006.01); B64C 27/68 (2006.01);
U.S. Cl.
CPC ...
B64C 27/57 (2013.01); B64C 13/503 (2013.01); B64C 27/06 (2013.01); B64C 27/68 (2013.01); G05D 1/0669 (2013.01);
Abstract
According to one aspect, a method of initial rotor state compensation for a rotorcraft includes determining a vehicle attitude of the rotorcraft prior to takeoff of the rotorcraft. A rotor state compensation is computed based on the vehicle attitude. A plurality of rotor servos is commanded to an initial rotor state based on a nominal rotor neutral position value in combination with the rotor state compensation to establish a predetermined takeoff trajectory of the rotorcraft.