System for control of an aerodynamic surface of an aircraft

摘要: System for control of an aerodynamic surface (1) aircraft, comprising intentional actuation member (5) and a hydraulic jack (2) intended to deflect said (1). According the invention, system comprises means (14) detecting difference in pressures prevailing (2), on either side piston (2C) latter, calculation (11) comprising: computer delivering values coefficient which is decreasing function pressures; multiplier receiving electrical signal (dp) representing demanded deflection addressing first command (C2) formed by product servovalve.