| 摘要 |
The field of the invention is that of safety devices for operating the actuators of aircraft and more specifically the flight control actuators of a helicopter. The invention consists of a safety operating device for controlling an actuator movement (15) comprising at least two independent calculation chains (120), (130), a circuit for mixing instructions (65) and a power stage (88), each calculation chain delivering a direction of movement instruction and a rate of movement instruction for the actuator, the instructions being transmitted to the circuit for mixing instructions (65) so as to formulate an actuator movement primary command comprising modulated pulse trains, the power stage receiving the primary movement command and delivering a movement power command to the actuator (15). According to the invention, the circuit for mixing instructions (65) compares the direction of movement instructions and the rate of movement instructions pairwise so as to formulate the primary command for moving the actuator. |
