Rotorcraft yaw piloting system making use of a member of the human-operated type and of a flight control generator of the objective type

摘要

A system and a method for controlling a rotorcraft (1) in yaw (Y). The control system comprises a plurality of drive channels that operate an anti-torque rotor (4) of the rotorcraft (1). A first drive channel makes use of a rudder bar (13) including a set of pedals operated by the human pilot of the rotorcraft in order to control the anti-torque rotor (4). A second drive channel includes an autopilot. A third drive channel includes objective-type flight control means comprising a movable control member (12) that is operated by the human pilot and that continuously issues control signals (11) relating to a state of progression that the rotorcraft (1) is to achieve. Use of the second drive channel and of the third drive channel depends on inhibit means (19) for inhibiting operation thereof, which means are activatable by detector means (37) for detecting operation of the rudder bar (13).

主权项

1. A flight control system for yaw (Y) control of a rotorcraft having an anti-torque rotor, the control system comprising:
at least one first drive channel making use of a rudder bar including a set of pedals operated by a human pilot and in communication with the anti-torque rotor via a remote mechanical transmission mechanism suitable for varying the collective pitch of blades forming part of the anti-torque rotor; at least one second drive channel including calculation means with use thereof depending on a control button that can be actuated by a human pilot, the calculation means cause activation of at least one actuator for acting on the remote mechanical transmission mechanism, the actuator being at least one of a trim actuator and a series actuator for acting on the remote mechanical transmission mechanism in substitution for the first drive channel; and inhibit means for inhibiting the second drive channel, with use thereof depending on detector means for detecting operation of the rudder bar being moved by the human pilot; wherein the control system includes a third drive channel incorporating objective piloting means with use thereof depending on a movable control member operated by a human pilot, the movable control member issuing a control signal to an objective computer that generates a yaw command order relating to a state of progression to be achieved by the rotorcraft which order is sent to the calculation means of the second drive channel.