Sagem Defense Securite

Safran Electronics & Defense

Guillaume Mercier

Jerome Piaton

Yann Vandenbaviere

Jérôme Piaton

Frederic Marques

Jérôme Mehez

Philippe Bezivin

Gaetan Princay

Stephane Menio

Matthieu Aubron

Guillaume Percheron

Geoffrey Beggiora

Yann Vendenbaviere

Stéphane Menio

Gaëtan Princay

Frédéric Marques

An actuator for at least one flight control surface of an aircraft. The actuator has at least two actuator members for actuating the flight control surface between two extreme positions and a motor connected to the actuator members by at least one rotary motion transmission line. Each actuator member includes a drive pinion and the actuator is arranged so that the transmission line has an angular amplitude of less than one revolution during movement of the flight control surface between its two positions. The motion transmission line is arranged to allow only one angular position between the drive pinions and the actuator member.

Easy-to-mount actuator

The invention concerns a device for the active control of a force feedback for a control device, comprising a calculator, a position sensor () configured to provide the calculator with an effective position signal (Pm) of the control device, and an actuator () ensuring the displacement of the control device at the command of the calculator, the calculator being configured to use the effective position signal and modulate a setpoint current (lc) delivered to the actuator to ensure the position feedback of the displacement of the control device, characterized in that the calculator is further configured to create at least one saturation terminal (Bsat+, Bsat&#x2212;) according to a predetermined function of the value of the effective position signal of the position/force law kind, and to saturate the setpoint current using the at least one saturation terminal.

Device and method for active control of a force feedback for a control device

A method of operating actuators simultaneously for moving at least two aircraft movable aerodynamic surfaces, the method comprising the steps of: controlling the actuators to move the aerodynamic surfaces towards a predetermined position; during the movement, detecting a slowest actuator; and adapting the control of the actuators to match the actions of the slowest actuator. A drive device for aerodynamic surfaces and an aircraft including such a device.

Method of operating actuators simultaneously for moving aircraft flaps, an aircraft flap drive device, and an aircraft provided with such a device

An actuator comprising at least one multiphase motor having phases facing a rotor secured to an outlet shaft associated with a braking member and provided with a connection to a movable element that is to be moved, the motors and the braking member being connected to at least one motor control unit for controlling the motors by powering their phases. The motor has at least four phases wound in such a manner as to avoid a neutral point, and in that the control unit has one single-phase inverter per phase and is arranged to implement a nominal, three-phase mode of control, and a degraded mode of control that enables the rotor to be driven in rotation by powering two non-collinear phases thereof.

Actuator having a multiphase motor, and a method of controlling such an actuator

Growing community of inventors

Boulogne Billancourt, France

Guillaume Mercier