H4
MMAAIINN CCOOMMPPOONNEENNTTSS OOFF EELLEECCTTRRIICC VVEEHHIICCLLEE
•On-Board Charger (OBC): External device (low speed) to charge the high
voltage battery.
•Inverter: Transforms direct current into alternate current to supply power to
the motor, and transforms alternate current into direct current to charge the
high voltage battery.
•LDC: Transforms power from the high voltage battery to low voltage (12 V)
to supply power to the vehicle (DC-DC).
On-Board Charger
(OBC)
High Voltage Battery
EPCU
(Inverter + LDC)
Motor
Reduction
Gear
Main Components of Electric Vehicle
•Motor: Uses electrical energy
stored inside the high voltage bat-
tery to drive the vehicle (functions
like an engine in a standard vehi-
cle).
•Reduction Gear : Delivers rota-
tional force of the motor to the tires
at appropriate speeds and torque.
•High voltage battery (lithium-ion
polymer) : Stores and supplies
power necessary for the electric
vehicle to operate (12 V auxiliary
battery provides power to the vehi-
cle features such as lights and
wipers).
❈OBC:On-Board Charger
❈LDC:Low Voltage DC-DC Converter
OAEEQ016001
