2019 Hyundai Ioniq Electric auxiliary battery

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Electric Vehicle
An electric vehicle is driven using a
battery and an electric motor. Whilst
general vehicles use an internal
combustion engine and petrol as
fuel, electric vehicles use electrical
energy that is charged 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.
Characteristics of Electric
Vehicles
1.It is driven using the electrical
energy that is charged inside the
high voltage battery. This method
prevents air pollution since fuel,
like petrol, 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 downhill, regenerative braking is
utilized to charge the high voltage
battery. This minimises 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.)
Information
What does regenerative braking do?
It uses an electric motor when decel-
erating and braking and transforms
kinetic energy to electrical energy in
order to charge the high voltage bat-
tery. (Torque is applied in the opposite
direction when decelerating to gener-
ate braking force and electric energy.)
Battery Information
The vehicle is composed of a highvoltage battery that drives the
motor and air-conditioner, and an
auxiliary battery (12 V) that drives
the lamps, wipers, and audio sys-
tem.
The auxiliary battery is automati- cally charged when the vehicle is
in the ready ( ) mode or the high
voltage battery is being charged.
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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.
OAEEQ016001
On-Board Charger
(OBC) High Voltage Battery
EPCU
(Inverter + LDC)
Motor
Reduction Gear
Main Components of Electric Vehicle
LDC: Transforms power from the
high voltage battery to low voltage
(12 V) to supply power to the vehi-
cle (DC-DC).
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
tyres 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

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Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
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Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%)(turns OFF in 5 seconds)
BlinkBlinkBlinkError whilst charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air condi-
tioner is operating
(OFF)Blink(OFF)Scheduled charging is operating (turns OFF after 3 minutes)

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Checking Charging Status
When charging the high voltage bat-
tery, the charge level can be checked
from outside the vehicle.
OAEEQ016025
Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%)(turns OFF in 5 seconds)
BlinkBlinkBlinkError whilst charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air condi-
tioner is operating
(OFF)Blink(OFF)Scheduled charging is operating (turns OFF after 3 minutes)

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How to Disconnect FastCharger
1.Remove the charging connector
when fast charging is completed,
or after you stop charging using the
fast charger. Refer to each respec-
tive fast charger manual for details
about how to disconnect the charg-
ing connector.Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%)(turns OFF in 5 seconds)
BlinkBlinkBlinkError whilst charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air condi-
tioner is operating
(OFF)Blink(OFF)Scheduled charging is operating (turns OFF after 3 minutes)
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Operation of Charging Indicator LampDetails(1)(2)(3)
(OFF)(OFF)(OFF)Not Charged
Blink(OFF)(OFF)
Charging
0~33%
(ON)Blink(OFF)34~66%
(ON)(ON)Blink67~99%
(ON)(ON)(ON)Fully charged (100%)(turns OFF in 5 seconds)
BlinkBlinkBlinkError whilst charging
(OFF)(OFF)BlinkCharging 12 V auxiliary battery or scheduled air condi-tioner is operating
(OFF)Blink(OFF)Scheduled charging is operating (turns OFF after 3 minutes)

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Regeneration
The high-voltage battery is charged
up by the regenerative brake system.
(Wheel ➞Battery)
Aux. Battery Saver+
The Aux. Battery Saver+ is a function
that monitors the charging status of
the 12 V auxiliary battery.
If the auxiliary battery level is low, the
main high voltage battery charges
the auxiliary battery.
Information
The Aux. Battery Saver+ function will
be ON when the vehicle is delivered. If
the function is not needed, you may
turn it off in the Users Settings mode
on the cluster. For more information,
refer to the following page.
Mode
Cycle Mode :
When the vehicle is OFF with all
doors, bonnet and tailgate closed,
the Aux. Battery Saver+ periodcally
activates according to the auxiliary
battery status.
Automatic Mode :
When the POWER button is in the
ON position with the charging con-
nector plugged in, the function acti-
vates to prevent overdischarge of
the auxiliary battery.
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OAEQ046002L

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Information
• The Aux. Battery Saver+ activatesmaximum of 20 minutes. If the Aux.
Battery Saver+ function activates
more than 10 times consecutively in
the Automatic Mode, the function
will stop activating, judging that
there is a problem with the auxiliary
battery. In this case, drive the vehi-
cle for some period of time. The
function will start activating if the
auxiliary battery returns to normal.
• The Aux. Battery Saver+ function cannot prevent battery discharge if
the auxiliary battery is damaged,
worn out, used as a power supply or
unauthorised electronic devises are
used.
• If the Aux. Battery Saver+ function was activated, a message will be dis-
played on the instrument cluster
and the high voltage battery level
may have decreased.
System Setting
The driver can activate the Aux.
Battery Saver+ function by placing
the POWER button to the ON posi-
tion and by selecting:
'User Settings → Other Features →
Aux. Battery Saver+'
The Aux. Battery Saver+ function
deactivates, when the driver cancels
the system setting.
LCD Message
This message is displayed when the
Aux. Battery Saver+ function has
been completed when the vehicle is
turned ON.
However, if the LCD message pops
up frequently, we recommend that
your vehicle’s auxiliary battery or
electric/electronic components be
serviced by a HYUNDAI authorised
repairer.
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OAEE046143LOAEE046433L