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. 27, 2021
Filed:
Apr. 24, 2018
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventors:
Brad John Roberts, Fort Worth, TX (US);
Jonathan Allen Wasylyszyn, Keller, TX (US);
Assignee:
TEXTRON INNOVATIONS INC., Providence, RI (US);
Primary Examiner:
Int. Cl.
CPC ...
B64D 31/06 (2006.01); B64C 29/00 (2006.01);
U.S. Cl.
CPC ...
B64D 31/06 (2013.01); B64C 29/0033 (2013.01);
Abstract
A method and system to control a rotor system includes providing a controller communicably coupled to the rotor system, and automatically changing a rotor speed of the rotor system from a first rotor speed in a first flight mode to a second rotor speed in a second flight mode over a time period using the controller in accordance with an acceleration-rate profile that varies over the time period.