Specification

Component

1. High Voltage Junction Box Service Cover
1-a. 3.9 - 5.9 N·m (0.4 - 0.6 kgf·m, 2.9 - 4.3 lb·ft, 34.7 - 52.1 lb·in)
2. Rear High Voltage Junction Box
2-a. 6.9 - 9.8 N·m (0.7 - 1.0 kgf·m, 5.1 - 7.2 lb·ft)
2-b. 19.6 - 23.5 N·m (2.0 - 2.4 kgf·m, 14.5 - 17.4 lb·ft)
3. Multi Inverter Assembly
3-a. 3.9 - 5.9 N·m (0.4 - 0.6 kgf·m, 2.9 - 4.3 lb·ft, 34.7 - 52.1 lb·in)

Description

• It is installed in the rear motor and converts the DC power to the AC power(variable frequency and voltage).

• It controls the rotational speed and torque of the motor through the power control.

• The 400 V boosts to 800 V when quick charge.

• It is a next generation charging system for 400 V and 800 V multi-charging. In 400 V charging infrastructure, a motor and inverter are used to charge the 800 V battery and in the 800 V charging infrastructure, the battery is charged by the high voltage input from the charger.

Removal

• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. A lack of understanding of the high voltage system can lead to serious accidents due to electric shock or electric leakage.

• When working on high voltage system or related components, make sure that you are familiar and comply with the "Safety Precautions, Cautions and Warnings." If you do not comply with the instructions, serious accidents due to electric shock or leakage may occur.

• When working on high voltage system, make sure to check the Personal Protective Equipment (PPE) and high voltage shut-off procedures.

1.Remove the rear high voltage junction box.(Refer to High Voltage Distributing System - "Rear High Voltage Junction Box")

2.Separate the multi inverter cooling quick connector hoses (A).

3.Separate the wiring protector (A) from multi inverter assembly.

Tightening torque :6.9 - 9.8 N·m (0.7 - 1.0 kgf·m, 5.1 - 7.2 lb·ft)

4.Disconnect the multi inverter assembly connector (A).

5.Remove the multi inverter assembly (A) after removing the bolts.

Tightening torque :3.9 - 5.9 N·m (0.4 - 0.6 kgf·m, 2.9 - 4.3 lb·ft, 34.7 - 52.1 lb·in)

Installation

• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. A lack of understanding of the high voltage system can lead to serious accidents due to electric shock or electric leakage.

• When working on high voltage system or related components, make sure that you are familiar and comply with the "Safety Precautions, Cautions and Warnings." If you do not comply with the instructions, serious accidents due to electric shock or leakage may occur.

• When working on high voltage system, make sure to check the Personal Protective Equipment (PPE) and high voltage shut-off procedures.

1.Install in the reverse order of removal.

• Install the multi inverter assembly to the specified torque.

• If the multi inverter assembly is dropped, it may cause internal damage. (Do not reuse)

• Replace the gasket (A) and check the installation before installing the multi inverter assembly.

• Perform the PE system leak test procedure before installing the multi-inverter assembly in the vehicle.

2.Perform the PE system leak test with the KDS.(Refer to High Voltage Distributing System - "Rear High Voltage Junction Box")

3.Perform the Initialization of Automatic Resolver Offset Calibration procedures with the KDS.(S/W Management → Motor Control Unit-Rear → Initialization of Automatic Resolver Offset Calibration)