Provided is an operation state diagnostic device including a spring displacement calculation unit, a spring displacement estimation unit, and a damper abnormality determination unit. The spring displacement calculation unit uses a pressure value of an air spring output from a pressure sensor to calculate a vertical displacement of the air spring as an "air spring displacement ΔX." The spring displacement estimation unit uses a railway vehicle model, position information of a position sensor, and the pressure value of the air spring to estimate the vertical displacement of the air spring as an "air spring displacement estimation value ΔXc." The damper abnormality determination unit determines an abnormality by comparing the "air spring displacement ΔX" calculated by the spring displacement calculation unit and the "air spring displacement estimation value ΔXc" estimated by the spring displacement estimation unit with each other.


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    Title :

    OPERATION STATE DIAGNOSTIC DEVICE


    Additional title:

    DIAGNOSEVORRICHTUNG FÜR BETRIEBSZUSTAND
    DISPOSITIF DE DIAGNOSTIC D'ÉTAT DE FONCTIONNEMENT


    Contributors:

    Publication date :

    2023-08-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



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