Kia Soul: Description and Operation - EV Battery SystemKia Soul: Description and Operation

Kia Soul EV (PS EV) 2015-2020 Service Manual / EV Battery System / Description and Operation

Description and Operation
Electric vehicle is powered by transforming electric energy into kinetic energy in the motor and high voltage battery. It can be recharged by high voltage energy via IBC or OBC. Electric motor not only has the role of driving the vehicle but also acts as an alternator to generate electric energy used to recharge the high voltage battery by regenerative braking. Operation principles among modules are as detailed below.

High Voltage Electricity Flow Diagram
[Start/ Acceleration/ Uphill Take-off]

Electric energy stored in high voltage battery pack assembly is used to generate drive force from the drive motor. Electric energy is transformed into kinetic energy and drive force is transferred to the wheels.

[Deceleration (Regenerative Braking)]

- Drive motor is used as an alternator and uses the kinetic energy generated during deceleration to recharge electric energy in the high voltage battery pack assembly.
- Activate: When the vehicle speed is over 10 km/h
- Not Activate: When the vehicle speed is less than 3 km/h

[Rapid Charge]

- Charge power : 500V, 200A
- Charge Type : Direct Current (DC)
- Charge time: Approx. 25 min.
- Charge Flow Diagram : Rapid Charge Stand -> High Voltage Battery System Assembly
- Charge Volume: 80% of High Voltage Battery''s SOC

[Nomal Charge]

- Charge power: 220V, 35A
- Charge Type : Alternating Current (AC)
- Charge time: Approx. 5 hr.
- Charge Flow Diagram : Normal Charge Stand -> ON-Board Charger (OBC) -> High Voltage Battery System Assembly
- Charge Volume : 95 % of High Voltage Battery''s SOC

[Indicator]

NO
RefSymbol
Name
Description
Color
Illumination
Signal Input
Control unit
Operation power
1

Ready lamp

Request ON when vehicle is ready for driving.
Green
LED
CAN
VCU
IGN1
2

Charge Lamp
Request to turn ON indication Lamp when charging is complete.
Green
LED
CAN
BMS
IGN3
3

Charge Lamp
Request to turn ON indication Lamp when charging is in progress.
Red
LED
CAN
BMS
IGN3
4

Power Down Lamp
In case of fault as indicated below, vehicle power output is limited, and Lamp ON is requested.
 - Overheating, or low SOC
 - Overheating and system error
 - If vehicle speed is limited due to ABS or brake system failure.
- Cooling system failure
Yellow
LED
CAN
VCU
IGN1
5

Service Lamp
 - Request ON in case of VCU, MCU, BMS, LDC, FATC, or OBC failure is detected.
 - Turns ON at Start and then OFF after 3 seconds.
Yellow
LED
CAN
VCU
MCU
BMS
LDC
FATC
IGN1
OBC
IG1 & IGN3
6

LOW Battery Lamp
Request Lamp ON when high voltage battery SOC is low.
Yellow
LED
CAN
BMS
IGN1
7

Auxiliary 12V Battery Charge Lamp
In case of 12V auxiliary battery discharged, recharge device failure, or recharge system failure.
Warning Lamp ON Request
Red
LED
CAN
LDC
IGN1
8

RES Lamp
(RBS: Regenerative Braking System)
Request ON in case of regenerative brake failure.
Yellow
LED
CAN
EBS
IGN1

    Components and Components Location
    Components Location 1. High Voltage Battery System Assembly2. Electronic Power Control Unit (EPCU) [LDC+Inverter+VCU]3. ON-Board Charger (OBC)4. High Voltage Joint Box5. High Voltage Cable6. Moto ...

    System Diagram
    System Diagram     OBC: ON-Board Charger QRA: Quick Charge Relay Assembly PRA: Power Relay Assembly EWP: Electronic Water Pump EPCU: Electronic Power Control Unit [LDC ...

    See also:

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