KIA Niro: Hybrid Control System / Components And Components Location

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

  1. HPCU (Hybrid Power Control Unit)
  2. On-Board Charger (OBC)
  3. Charge Port
  4. Power Cable (HPCU↔HSG,Electronic A/C Compressor)
  5. Power Cable (HPCU↔Main High Voltage Battery System)
  6. Power Cable (Main High Voltage Battery System ↔ Sub High Voltage Battery System)
  7. Main High Voltage Battery System
  8. Sub High Voltage Battery System

Description

The HCU (Hybrid Control Unit) controls whole hybrid systems and is connected with each control modules (ECM, TCM, MCU, BMS ECU etc.) by CAN interface. In addition this system uses the brake switch and Clutch Pressure Sensor (CPS) signals for controlling the hybrid system.

Warning

CAN interface is divided into hybrid and chassis CAN lines.

The HCU controls power & torque distribution of the engine and motor,

The HCU controls power & torque distribution of the engine and motor, regenerative brake, and fail-safe mode based on the vehicle information, driver's demand, engine information and high voltage battery information.

HCU Main Functionalities

HCU Main Functionalities

Hybrid Control System / Components And Components Location

Hybrid Control System / Components And Components Location

  1. HPCU (Hybrid Power Control Unit)
  2. HCU (Hybrid Control Unit)
  3. Brake Switch
  4. DC Fuse

Warning

HPCU includes the HCU (Hybrid Control Unit), Inverters (for Drive Motor, HSG and Electric A/C Compressor), MCU (Motor Control Unit) and LDC (Low DC / DC Converter).

Warning

For the location of the other control modules, refer to the relevant group.

  1. HPCU (Hybrid Power Control Unit)
  2. HCU (Hybrid Control Unit) Brake Switch
  3. Brake Switch DC Fuse
  4. DC Fuse

Specification

Description

Description

The Hybrid Power Control Unit (HPCU) is an integrated power conversion unit which consists of the
two inverters, LDC, and HCU.

Hybrid Power Control Unit (HPCU) Components and components location

  1. Hybrid Control Unit(HCU) (HPCU)
  2. Inverter (MCU) (HPCU)
  3. Low Voltage DC/DC Converter (LDC) (HPCU)
  4. High voltage connector (↔ High voltage battery system assembly)
  5. High voltage connector (↔ Hybrid drive motor assembly)
  6. High voltage connector (↔ HSG&Electric A/C compressor)
  7. Low Voltage DC/DC Converter (LDC) supply output terminal (+)
  8. DC Fuse (30A)
  9. Low Voltage DC/DC Converter (LDC) ground terminal (-)
  10. High voltage connector (↔ HSG&Electric A/C compressor)

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