KIA Niro: Hybrid Motor System

Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Hybrid Motor System

Specifications

Hybrid Drive Motor

Hybrid Starter Generator (HSG)

Hybrid Starter Generator (HSG)

Electric Water Pump (EWP)

Electric Water Pump (EWP)

Coolant

Coolant

Tightening Torques

Tightening Torques

Special Service Tools

Special Service Tools

Tool Name /

Tool Name /
Number/
Illustration / Description

Pressure cap
pressure
checker
0K253-G5100/ for pressure cap/Used for checking for pressure cap
pressure and a
coolant leak

Hybrid Motor Assembly / Description And Operation

Description

  • The hybrid motor system is equipped with two electric motors - HSG and drive motor.
  • The traction motor operates to move the vehicle, to reduce Noise, Vibration, and Harshness (NVH) while driving and to improve fuel efficiency.
  • The electric motor takes on the role of a generator during deceleration and braking.
  • The Hybrid Starter Generator (HSG) starts the engine while the vehicle is in motion.

Hybrid Drive Motor Assembly

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 Hybrid Drive Motor Assembly

 Hybrid Drive Motor Assembly Components and components location, Repair procedures

Component location! HPCU (Hybrid Power Control Unit) (LDC+MCU+HCU+Reservoir) Hybrid drive motor Hybrid starter generator (HSG) Electrical radiator Electric water pump (EWP) Components Hybrid motor assembly

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 Coolant Repair procedures

Refilling And Bleeding Warning Never remove the cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the reservoir. Warning When pouring inverter coolant, be sure to shut the relay box lid

 Engine Coolant Temperature Sensor (ECTS)

Specification Description Located in the engine coolant passage of the cylinder head, Engine Coolant Temperature Sensor (ECTS) detects the engine coolant temperature. The ECTS uses a thermistor with resistance in proportion to the tempera

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