Description
• Vehicle Control Unit (VCU) is the top-level controller of the vehicle that combines all the information to meet the driver's needs.
• VCU controls Drive motor control, Air conditioning load control, 12 V electric load power supply control, Disconnect Actuator System (DAS) and other comprehensive control.
| Function | Detail | ||||||
| Drive Motor Control |
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| A/C Load Control |
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| 12 V Electric Load Power Supply Control |
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| Disconnect Actuator System (DAS) Motor |
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| Cluster control |
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| Distance to Empty (DTE) |
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| Booking / Remote control |
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| Regenerative braking control |
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Component
1. Auxiliary 12 V Battery Negative ( - ) Cable
1-a. 7.8 - 9.8 N·m (0.8 - 1.0 kgf·m, 5.8 - 7.2 lb·ft)
2. Auxiliary 12 V Battery Positive ( + ) Cable
2-a. 7.8 - 9.8 N·m (0.8 - 1.0 kgf·m, 5.8 - 7.2 lb·ft)
3. Battery Clamp
3-a. 9.8 - 13.7 N·m (1.0 - 1.4 kgf·m, 7.2 - 10.1 lb·ft)
4. Auxiliary 12 V Battery
5. Vehicle Control Unit (VCU)
5-a. 9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
6. Battery Tray
6-a. 9.8 - 13.7 N·m (1.0 - 1.4 kgf·m, 7.2 - 10.1 lb·ft)
Removal
• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. It is because that lack of knowledge of the high voltage system can lead to serious accidents due to electric shock or electric leakage.
• When working a high voltage system, the technician must be recognized and observe "General Safety Information and Caution". If do not follow, serious accidents like electric shock and short circuit are caused.
• When working on high voltage system, make sure to check the Personal Protective Equipment (PPE) and high voltage shut-off procedures.
1.Remove the auxiliary 12 V battery.(Refer to Battery Control System - "Auxiliary 12 V Battery")
2.Disconnect the Vehicle Control Unit (VCU) (A).
3.Remove the VCU assembly (A) after removing the bolts.
Tightening torque :9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
4.Separate the bracket from the VCU (A) by removing the bolts.
Tightening torque :9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
Installation
• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. It is because that lack of knowledge of the high voltage system can lead to serious accidents due to electric shock or electric leakage.
• When working a high voltage system, the technician must be recognized and observe "General Safety Information and Caution". If do not follow, serious accidents like electric shock and short circuit are caused.
• 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 Vehicle Control Unit (VCU) to the specified torque values.
• If the VCU is dropped, it may cause internal damage. Do not use it.
2.Perform the Write VIN procedures with the KDS.
Removal
• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. It is because that lack of knowledge of the high voltage system can lead to serious accidents due to electric shock or electric leakage.
• When working a high voltage system, the technician must be recognized and observe "General Safety Information and Caution". If do not follow, serious accidents like electric shock and short circuit are caused.
• When working on high voltage system, make sure to check the Personal Protective Equipment (PPE) and high voltage shut-off procedures.
1.Remove the auxiliary 12 V battery.(Refer to Battery Control System - "Auxiliary 12 V Battery")
2.Disconnect the Vehicle Control Unit (VCU) (A).
3.Separate the wiring (A) from fastened to the VCU bracket.
4.Remove the VCU assembly (A) after removing the bolts.
Tightening torque :9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
5.Separate the bracket from the VCU (A) by removing the bolts.
Tightening torque :9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
Installation
• When working on high voltage system, the work should be performed by technicians who have completed the relevant training. It is because that lack of knowledge of the high voltage system can lead to serious accidents due to electric shock or electric leakage.
• When working a high voltage system, the technician must be recognized and observe "General Safety Information and Caution". If do not follow, serious accidents like electric shock and short circuit are caused.
• 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 Vehicle Control Unit (VCU) to the specified torque values.
• If the VCU is dropped, it may cause internal damage. Do not use it.
2.Perform the Write VIN procedures with the KDS.
