Page 12 - i-MeIV Product Information

EV System
2. EV System
2-1 Power unit

Major units Role
EV-ECU Perform the Integrated control for EV systems

Motor system MCU Convert DC 330V to AC 330 by integrated inverter for the motor.
Motor Control Unit It also controls the rotation speed/torque of motor.

Motor Forward the vehicle by receiving three phases AC 330V from MCU.
It also acts as alternator for regeneration when deceleration.
Battery System BMU Check battery condition based on data transmitted from CMU and shot-circuit
Contactor integrated. Battery Management Unit condition on high voltage line with data from short circuit sensor
CMU Monitoring Voltage between each cell and adjust the balance of each cell
Cell Monitor Unit voltage.
Lithium—ion battery High voltage battery for EV. It has 88 cells under series connection.
The rated voltage is 330V. ( = 3.75V x 88 cells)

OBC Battery charger to accommodate household electric power outlet
On board Battery Charger (Single phase AC100V/200V).
DC / DC converter Convert DC 330V to DC 14.4V to charge the battery for auxiliaries.

A/C system A/C Compressor Compressor is driven by the exclusive motor for it. DC 330V is provided to
the system and it is converted to AC330V by integrated inverter.

Heater PTC [Positive Temperature Coefficient] heater is adapted to provide
hot water to The heater unit. PTC heater uses DC 330V.

Electrical vacuum pump for brake master back To maintain the vacuum pressure in the brake master back.

Shut Down

BMU A/C & Heater
Lithum-ion ECU
Meter Battery
EV Switch 3.75V x 88 cells Electrical
Battery pack Heater compressor
BAT-CAN
On-board
CMU CMU CMU Battery charger
Shift position Switch DC / DC
Inhibitor Switch converter
EV ECU
Brake vacuum pressure
APS
MCU
Inverter
47kW/8000rpm
180Nm
Electrical Motor
vacuum pump
T/M
CHG-CAN
Quick
Radiator fan Connecter
Charger
Water pump Connecter
Household
Power supply
Reverse light Connecter

100V
or
200V

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