| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and method for monitoring a main relay of a green vehicle, capable of diagnosing whether a main relay is fused, the main relay being mounted between a high voltage battery and an inverter in a green vehicle and controlling the output of the high voltage battery. <P>SOLUTION: A main relay monitoring method for a green vehicle according to the present invention includes the steps of: stopping a switching operation of an inverter when an ignition off is detected, and turning off a main relay to cut a voltage output of a main battery; forcibly discharging a voltage charged at a DC link capacitor once the main relay is completely turned off; and comparing a voltage of the main battery with an input voltage of the inverter to monitor whether the main relay is fused. <P>COPYRIGHT: (C)2013,JPO&INPIT |
