MONITORING STATE OF SERVO DRIVE IN AIRCRAFT Russian patent published in 2019 - IPC B64D45/00 G07C5/00 G06F11/00 G06F17/00 

FIELD: aviation.

SUBSTANCE: device for monitoring the state of servo drive (30) of ECSA controlled by a servo-valve for the main flight control system, namely altitude rudders, ailerons, rudders, roll interceptors, braking interceptors, rotor position adjustment element and/or tail rotor adjustment member, in the aircraft comprises a state monitoring sensor, processor unit for processing data and for actuating system model of servo drive (30), sensors (151, 152, 153, 154, 155, 156) for recording servo drive control parameter (30), storage unit (54) for storing data on servo drive (30). Servo drive (30) of EHSA includes control electronics (50) and electrohydraulics (70). Control electronics (50) comprises power electronics (51), drive control system (52) and state monitoring system (53). State monitoring system (53) includes memory unit (54). Electrohydraulics (70) includes servo-valve (74), switching valve (73), gates (72), brake or damping device (78), hydraulic cylinder (71), memory unit (54), as well as sensors (151, 152, 153, 154, 155, 156).

EFFECT: control over the state of the servo drive is provided to prevent onset of critical safety cases of failures.

9 cl, 7 dwg