公开(公告)号：EP3366574A1

公开(公告)日：2018-08-29

申请号：EP18155205.0

申请日：2018-02-06

Applicant: Bell Helicopter Textron Inc.

Inventor： BOTHWELL, Christopher Mike ,  GILLETT, Luke Dafydd ,  ALFRED, Jillian

IPC: B64C13/28 ,  B64C13/04 ,  B64C13/10 ,  B64C27/57 ,  B64C13/50

CPC classification number: G05D1/0055 ,  B64C13/10 ,  B64C13/343 ,  B64C13/345 ,  B64C13/507 ,  B64C27/57 ,  F02C9/28 ,  F02C9/58 ,  F05D2220/329 ,  F05D2270/021

Abstract: A flight control computer (FCC) (205) for a rotorcraft (101) includes a processor and a non-transitory computer-readable storage medium storing a program to be executed by the processor, with the program including instructions for providing main rotor overspeed protection. The instructions for providing the main rotor overspeed protection include instructions for monitoring sensor signals indicating a main rotor RPM, determining a target operating parameter, determining one or more flight parameters in response to a relationship between the main rotor RPM and the target operating parameter indicating a main rotor overspeed condition. Determining the one or more flight parameters includes determining a setting for a flight control device (107; 212) of the rotorcraft (101) that changes the main rotor RPM, controlling positioning of a pilot control according to the flight parameters, and controlling the flight control device (107; 212) of the rotorcraft (101) according to positioning of the pilot control.