Hyundai Ioniq (AE): Hybrid Motor Control System / Motor Control Unit(MCU). Components and components location

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Motor System / Hybrid Motor Control System / Motor Control Unit(MCU). Components and components location

Component location

1. HPCU (Hybrid Power Control Unit)
(LDC+MCU+HCU+Reservoir)
2. Hybrid drive motor
3. Hybrid starter generator (HSG)
4. Electrical radiator
5. Electric water pump (EWP)

Components

1. HPCU (Hybrid Power Control Unit)
2. HPCU tray
3. HPCU cover
4. Integrated board (MCU / HCU / LDC)
5. Shield plate
6. Capacitor
7. Current sensor module
8. Gate board + Power module
9. Heat sink (water - cooled)
10. LDC (Low voltage DC - DC Converter)
11. High - voltage junction box

Inverter (MCU)
An inverter supplies AC current to the drive motor and HSG.
Depending on the driving conditions, the drive motor and HSG of the integrated board (control board) may act as a generator.
Integrated board (control board)
One CPU controls two motors (drive motor and HSG)
Sensors send the position, current, and temperature information to the CPU. The CPU generates the pulse width modulation signal and sends it to the gate board.
Capacitor
Capacitor is an energy storage device for smoothing the current.
Current sensor
Current sensor measures the current that flows through the motor, and is attached to each phase of a 3 - phase busbar.
Power module
Power module has six switches that are used to convert DC current to AC current.
Heat sink
Heat sink dissipates the heat of the coolant and is located between the power module and the cooling path.

    DescriptionIn a hybrid electric vehicle, HCU (an upper level controller), LDC (power converter), and inverter are integrated in the HPCU. HPCU is located on the left side of the engine compartment.

    Diagram System CircuitA high-capacity power module is applied to the two high-voltage motors.The power module consists of a high - speed switching circuit that is isolated from the IGBT and DIODE circuits.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

    Service Point Target Auto Calibration (SPTAC)When you need calibration :– Front view camera is removed and mounted– Replace front view camera with a new one – Windshield glass changed– Front view camera coupler of the windshield glass is deformedService Point T

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation

    DescriptionRear view monitor (RVM) will activate when the backup light is ON with the ignition switch ON and the shift lever in the R position.This system is a supplemental system that shows behind the vehicle through the AV monitor while backing-up.    • This system is a supplementary function only.

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