4
• 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).
• VCU: Functions as a supervisory controller of electric vehicle
• Motor: Uses electrical energy stored inside the high voltage battery to
drive the vehicle (functions like an engine in a standard vehicle).
• Reduction Gear : Delivers rotational force of the motor to the tyres at
appropriate speeds and torque.
• High voltage battery (lithium-
ion polymer) : Stores and sup-
plies power necessary for the
electric vehicle to operate (12 V
auxiliary battery provides power to
the vehicle features such as lights
and wipers).
❈ OBC : On-Board Charger
❈ LDC : Low Voltage DC-DC Converter
❈ VCU: Vehicle Control Unit
MAIN COMPONENTS OF
ELECTRIC VEHICLE
Main Components of Electric Vehicle
ODEEVQ018080
High Valtage
Bettery
On-Board
Charger
EPCU
(Inverter+LDC+VCU)
Motor
Reduction
Gear
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