A system for controlling a propeller having a plurality of blades (12) having a primary control system (16) and a backup control system (25). The primary control system (16) including a sensor (29) responsive to a propeller state, and a controller (100) connected to the sensor and to an electrohydraulic control actuator (20). The electrohydraulic control actuator connected via a bypass valve (24) to a hydraulic actuator that controls at least a blade angle of a blade of the propeller. The controller generating commands to the electrohydraulic control actuator based on at least the propeller state. The backup control system including a second controller, an electrohydraulic solenoid operably connected to the bypass valve. The backup control system operable to hydraulically disable the primary control system via the bypass valve upon the occurrence of a selected condition, the second controller modulates the operation of the electrohydraulic solenoid to control the bypass actuator based on the propeller state.


    Access

    Download


    Export, share and cite



    Title :

    PROPELLER BLADE ANGLE CLOSED LOOP CONTROL BY SOLENOID MODULATION


    Additional title:

    STEUERUNG VON PROPELLERBLATTWINKEL MIT GESCHLOSSENEM REGELKREIS DURCH ELEKTROMAGNETISCHE MODULATION
    COMMANDE EN BOUCLE FERMÉE D'ANGLE DE PALE D'HÉLICE PAR MODULATION DE SOLÉNOÏDE


    Contributors:

    Publication date :

    2020-06-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Propeller blade angle closed loop control by solenoid modulation

    MAVER TIMOTHY / LASSALLE JULIEN / MARGER THIBAUT et al. | European Patent Office | 2023

    Free access

    PROPELLER BLADE ANGLE CLOSED LOOP CONTROL BY SOLENOID MODULATION

    MAVER TIMOTHY / LASSALLE JULIEN / MARGER THIBAUT et al. | European Patent Office | 2020

    Free access

    PROPELLER BLADE ANGLE CLOSED LOOP CONTROL BY SOLENOID MODULATION

    MAVER TIMOTHY / LASSALLE JULIEN / MARGER THIBAUT et al. | European Patent Office | 2020

    Free access

    Propeller blade angle control system

    WADDLETON DAVID | European Patent Office | 2020

    Free access

    PROPELLER BLADE ANGLE CONTROL SYSTEM

    WADDLETON DAVID | European Patent Office | 2018

    Free access