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.
OPERATION STATE DIAGNOSTIC DEVICE
DIAGNOSEVORRICHTUNG FÜR BETRIEBSZUSTAND
DISPOSITIF DE DIAGNOSTIC D'ÉTAT DE FONCTIONNEMENT
2024-09-25
Patent
Electronic Resource
English
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES |
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