ACTUATOR SYSTEM FOR AIRCRAFT CONTROL SURFACE

摘要

An actuator system includes an actuator which is configured to generate a loading on a control surface, as a function of an actuation order received, a command unit of the actuator, which is configured to compute an actuation order of the actuator, a reception element for receiving a current value of the loading generated by the actuator, and a limitation unit configured to reduce the control authority of the command unit as a function of the current value of the loading and to limit the loading of the actuator to a predetermined setpoint value.

主权项

1. An actuator system for an aircraft control surface, said system comprising:
at least one actuator configured to generate a loading, as a function of an actuation order received; and a command unit of the at least one actuator configured to receive a control signal and an indication of position of the control surface, and to compute an actuation order with the aid of said control signal and of said position indication, said actuation order being transmitted to said at least one actuator, wherein said at least one actuator comprises: at least one sensor configured to measure a current loading generated by the at least one actuator and to transmit a corresponding current value; and a reception element for receiving the current value of the loading generated by the at least one actuator, wherein the command unit comprises a limitation unit configured to limit and command the loading generated by the actuator, said limitation unit comprising: a first unit configured to reduce the control authority of the command unit, as a function of said current value of the loading; and a second unit configured to limit the loading of the actuator to a predetermined setpoint value, wherein the first unit comprises: a computation element configured to compute a value of gain, as a function of a predetermined gain table and of said current value of the loading, received from the reception element; and a computation element configured to apply said gain to said actuation order, before transmitting it to said at least one actuator.