Component Description

FUNCTIONS WITHIN THE SYSTEM 

• The system main relay 1 is integrated in the Li-ion battery and controlled by VCM.
• The system main relay 1 connects and disconnects the high-voltage circuit (+) side and Li-ion battery.
• The pre-charge to the inverter condenser is complete while high voltage power is supplied, VCM activates the system main relay 1 to supply power from the Li-ion battery to the EV system.
• When charging, VCM activates the system main relay 1 to supply power from an external charger to the Li-ion battery.

INDIVIDUAL FUNCTION WITHIN THE SYSTEM 

The system main relay 1 connects and disconnects of the power supply circuit by ON / OFF of the relay switch.

COMPONENT LOCATION 

The system main relay 1 is integrated in the Li-ion battery. The Li-ion battery is installed under the floor of the vehicle.