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:
Apr. 16, 2019
Filed:
Apr. 11, 2017
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Christopher Mike Bothwell, Grapevine, TX (US);
Sung Kyun Kim, Bedford, TX (US);
Jillian Samantha Alfred, Fort Worth, TX (US);
Robert Earl Worsham, II, Weatherford, TX (US);
Luke Dafydd Gillett, Grapevine, TX (US);
Morganne Cody Klein, Fort Worth, TX (US);
BELL HELICOPTER TEXTRON INC., Fort Worth, TX (US);
Abstract
A rotorcraft including a flight control computer (FCC) providing a vertical speed hold for the rotorcraft, a collective control, and a collective trim motor connected to the collective control. The collective trim motor moves the collective control according to a collective set command generated by the FCC according to a target vertical speed and when the FCC determines the collective control is in-detent. A collective position sensor is connected to the collective control. The collective position sensor generates, and sends to the FCC, a collective position signal indicating the position of the collective control. A flight control device controls a flight parameter of the rotorcraft in response to a flight control device control signal received from the FCC. The FCC generates the flight control device control signal according to the collective position signal, and sends the flight control device control signal to a flight control device.