Kia Niro: Hybrid Control System / Description and operation

Hybrid Electric Vehicle (HEV)
Hybrid Electric Vehicle (HEV) uses a hybrid power source in the form of combination of combustion engine and electric motor. This will increase the fuel efficiency and emit less harmful exhaust emissions over conventional vehicles with combustion engine system.
In Electric Vehicle (EV) mode, the HEV is driven by only the electric motor, but engine supports the motor in case the vehicle needs more power (HEV Mode).
The electric motor not only drives the vehicle but also generates electric energy during regenerative braking for charging the high voltage battery.


[HEV Operation Mode and Power Flow]

[Warning Lamp]

Items
Description
Related Control Module
1. MIL Lamp

Lamp ON : Engine Management System (EMS) fault


2. Service Lamp

Lamp ON : Hybrid related system fault


3. READY Lamp

After ignition START

Lamp ON : HEV in normal condition is ready to drive (Engine may or may not start)

Lamp OFF : HEV is not ready to drive

During driving

Lamp ON : HEV is ready to drive

Lamp Blinking : HEV in faulty condition (HEV in limited operating mode)

Lamp OFF : HEV is not ready to drive

HPCU (HCU)
4. EV MODE Lamp

Lamp ON : EV mode (Electric motor only)

Lamp OFF : HEV mode (Engine running)

HPCU (HCU)

Special service tools
Special Service Tools Tool Name / Number Illustration Description Insulated Tool Set 0K375-4U000 Use ...

Components and components location
Component Location 1. Engine 2. Hybrid Drive Motor Assembly 3. Hybrid Starter Generator (HSG) 4. Transaxle 5. High Voltage Battery System Assembly ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Checking Refrigerant Specifications 1. Check refrigerant specifications label inside engine room. R-134a R-1234yf Examples ...

Kia Niro 2017 (DE HEV) Service Manual: Pre-Charge Resistor Repair procedures
Removal    • Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instr ...

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