KIA Niro: Hybrid Control System / Description And Operation

Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Hybrid Control System / Hybrid Electric Vehicle (HEV) / Hybrid Control System / Description And Operation

The Hybrid Electric Vehicle (HEV) uses hybrid power source (Engine, Electric motor), so its fuel efficiency is relatively high and exhaust emission is very small compared to the traditional vehicle which uses only engine as power source. It consists of the engine, motor, high voltage battery and control modules.

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

Driver Mode

Driver Mode

Warning Lamp

Warning Lamp

Items

Items

  1. MIL Lamp

Description

  • Lamp ON : Engine Management System (EMS) fault

Items

  1. Service Lamp

Description

  • Lamp ON : Hybrid related system fault

Items

  1. READY Lamp

Description

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

Related Control Module

HPCU (HCU)

Items

  1. EV MODE Lamp

Description

  • Lamp ON : EV mode (Electric motor only)
  • Lamp OFF : HEV mode (Engine running)

Related Control Module

HPCU (HCU)

    READ NEXT:

     Hybrid Control System / Components And Components Location

    HPCU (Hybrid Power Control Unit) On-Board Charger (OBC) Charge Port Power Cable (HPCU↔HSG,Electronic A/C Compressor) Power Cable (HPCU↔Main High Voltage Battery System) Power Cable (Main High Voltage Battery System â

     Hybrid Power Control Unit (HPCU) connector and high voltage cable

    Hybrid Power Control Unit (HPCU) terminal And Input/Output signal HPCU Terminal Function Connector (C133-S) (94Pin) : HPCU signal input and control High Voltage Cable (C133-P) (2 Pin) : HPCU↔Power Relay Assembly

     Hybrid Power Control Unit (HPCU)/ Repair procedures

    Removal Warning 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 instructions may result in serious electrical inju

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    Towing a trailer requires a certain amount of experience. Before setting out for the open road, you must get to know your trailer. Acquaint yourself with the feel of handling and braking with the added weight of the trailer. And always keep in

     High Voltage (HV) battery (lithium-ion polymer)

    On-Board Charger (OBC): Transforms (inverts) AC power charge power, to DC power, to charge the high voltage battery Inverter: Transforms direct current into alternating current to supply power to the motor, and transforms alternating

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