An engine start system for an aircraft includes a first variable frequency start generator (VFSG) including a first exciter and a first stator, a second VFSG including a second exciter and a second stator, a first motor controller and a second motor controller, and a switching system. The switching system is configured to operatively connect the first motor controller to the first stator or the second exciter and operatively connect the second motor controller to the first exciter or the second stator. In a first mode of operation, the first motor controller is operatively connected to the second exciter, the second motor controller is operatively connected to the second stator, the first VFSG generates power, the first motor controller provides a first controlled voltage and frequency to the second exciter, and the second motor controller provides a second controlled voltage and frequency to the second stator.


    Access

    Download


    Export, share and cite



    Title :

    AIRCRAFT ENGINE START USING MULTIPLE COMMON MOTOR CONTROLLERS


    Contributors:

    Publication date :

    2025-04-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



    AIRCRAFT HYDRAULIC START MOTOR

    SAE Technical Papers | 1994


    Retrofit aircraft autothrottle control for aircraft with engine controllers

    HEDRICK GEOFFREY S M / ASKARPOUR SHAHRAM / KNOPF MARKUS | European Patent Office | 2024

    Free access

    RETROFIT AIRCRAFT AUTOTHROTTLE CONTROL FOR AIRCRAFT WITH ENGINE CONTROLLERS

    ASKARPOUR SHAHRAM / KNOPF MARKUS / HEDRICK GEOFFREY S M | European Patent Office | 2025

    Free access

    RETROFIT AIRCRAFT AUTOTHROTTLE CONTROL FOR AIRCRAFT WITH ENGINE CONTROLLERS

    HEDRICK (DECEASED) GEOFFREY S M / ASKARPOUR SHAHRAM / ASKARPOUR MARKUS | European Patent Office | 2023

    Free access

    RETROFIT AIRCRAFT AUTOTHROTTLE CONTROL FOR AIRCRAFT WITH ENGINE CONTROLLERS

    ASKARPOUR SHAHRAM / KNOPF MARKUS / HEDRICK GEOFFREY | European Patent Office | 2023

    Free access