Hyundai Ioniq (AE): 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 |
| • | 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. |
| • | 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 is an energy storage device for smoothing the current. |
| • | Current sensor measures the current that flows through the motor, and is attached to each phase of a 3 - phase busbar. |
| • | Power module has six switches that are used to convert DC current to AC current. |
| • | 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: PTC Heater. Description and operation
DescriptionThe PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core.The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective hybrid engine.
Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Schematic diagrams
Trouble Symptom ChartsComponent Parts and Function Outline Component part Function Cruise Control Switch Input the set speed and distance to the SCC ECU. Instrument Cluster Display various information inputted from SCC.
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