APPARATUS FOR DIAGNOSING DC MOTOR FAULT OF GATE DOOR FOR RAILWAY VEHICLE AND METHOD FOR DIAGNOSING DC MOTOR FAULT USING SAME

摘要

The present invention provides an apparatus for diagnosing a DC motor fault of a gate door for a railway vehicle, which performs frequency conversion (converting a signal waveform in accordance with time into a frequency domain) with respect to a measured voltage and a measured current, checks whether an abnormal frequency exists in a frequency component (type of waveform, etc.) through the frequency conversion at the same time, and diagnoses a fault when confirming the occurrence of an abnormality in both a voltage and a current, thereby carrying out a high reliable fault diagnosis and quick fault diagnosis.;COPYRIGHT KIPO 2019