2017 KIA Soul EV engine

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An electric vehicle is driven using a
battery and an electric motor. While
general vehicles use an internal
combustion engine and gasoline as
fuel, electric vehicles use electrical
energy that is stored inside the high
voltage battery. As a result, electric
vehicles are eco-friendly in that they
do not require fuel and do not emit
exhaust gases.1. It is driven using the electrical ener-
gy that is stored inside the high
voltage battery. This method pre-
vents air pollution since fuel, like
gasoline, is not required, negating
the emission of exhaust gases.
2. A high performance motor is used in the vehicle as well. Compared
to standard, internal combustion
engine vehicles, engine noise and
vibrations are much more minimal
when driving.
3. When decelerating or driving down- hill, regenerative braking is utilized
to charge the high voltage battery.
This minimizes energy loss and
increases the distance to empty.
4. When the battery charge is not sufficient, normal charge, quick
charge and trickle charge are
available. (Refer to “Charge Types
for Electric Vehicle” for details.)
REVIEW OF ELECTRIC VEHICLE
Review of Electric Vehicle Characteristics of Electric
Vehicles
What does regenerative braking
do?
It uses an electric motor when
decelerating and braking and
transforms kinetic energy to elec-
trical energy in order to charge the
high voltage battery. (Torque is
applied in the opposite direction
when decelerating to generate
braking force and electric energy.)
Note

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High Voltage Junction Block: Supplies power from the high voltage bat-
tery to the inverter, LDC, air-conditioner compressor, and PTC heater.
On-Board Charger (OBC): External device (low speed) to charge the high
voltage battery.
Inverter: Transforms direct current into alternating current to supply power
to the motor, and transforms alternating 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).
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 tires 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
MAIN COMPONENTS OF
ELECTRIC VEHICLE
Main Components of Electric Vehicle
OPSE0Q4002
High Voltage
Junction Block
On-Board Charger (OBC) High Voltage
Battery
EPCU
(Inverter + LDC)
Motor/
Reduction Gear

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The Pedestrian Warning System
generates engine sound for pedestri-
ans to hear vehicle sound because
there is little sound while the Electric
Vehicle (EV) is operating.
If the vehicle is moving at a slow
speed, the Pedestrian Warning
System will be operated.
- When the reduction gear is shiftedto [R], the Pedestrian Warning
System will be operated immedi-
ately.
The vehicle generates little sound. Be aware of your driving environ-
ment and drive safely.
After you park the vehicle or while you are waiting at a traffic light,
check whether there are kids or
obstacles around the vehicle.
Check if there is something behind the vehicle when driving in
reverse. Pedestrians may not hear
the sound of the vehicle. Active ECO helps improve energy
efficiency by controlling certain
motor and climate contol system
operating parameters. Energy effi-
ciency depends on the driver's driv-
ing habit and road condition.
When the Active ECO button is
pressed the ECO indicator (green)
will illuminate to show that the
Active ECO is operating. When the Active ECO is activated,
it will remain on until the Active
ECO button is pressed again.
Active ECO does not turn off when
the vehicle is restarted. To turn off
Active ECO, press the Active ECO
button again.
If Active ECO is turned off, the sys- tem will return to normal mode.
Pedestrian Warning System Active ECO system
DRIVING ELECTRIC VEHICLE
OPSE0Q4043N