FAILURE DETECTION METHOD OF CURRENT SENSOR IN CONVERTER, VEHICLE SYSTEM AND ELECTRIC CONTROL UNIT

The present disclosure relates to a failure detection method for detecting a failure of a current sensor in a converter. A failure detection method of a current sensor in a converter includes recognizing a voltage value of a high voltage battery associated with a vehicle, calculating a reference current value of the converter associated with the high voltage battery based on the recognized voltage value of the high voltage battery and a resistance value of a pre-charge relay, obtaining a sensing current value from the current sensor in the converter, and detecting whether the current sensor in the converter fails using the calculated reference current value and a sensing current value obtained from the current sensor.