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 (DE HEV) Owners Manual: Checking the amount of air conditioner refrigerant and compressor lubricant
When the amount of refrigerant is low, the performance of the air conditioning is reduced. Overfilling also has a bad influence on the air conditioning system. Therefore, if abnormal operation is found, we recommend that the system be inspected by an authorized Kia dealer. WARNING - Vehicles e ...

Kia Niro 2017 (DE HEV) Service Manual: Safety Plug Description and operation
Description Safety Plug is installed on the rear side of the high voltage battery and it can mechanically shut the high voltage circuit off when servicing the high voltage system (i.e. High Voltage Battery, Power Relay Assembly, HPCU, BMS ECU, Hybrid Drive Motor, Inverter, HSG, LD ...

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