Power Distribution Unit

PDUs in Electric Vehicle

Power Distribution Units in electric vehicles are electronic devices that manage and distribute electrical energy within the vehicle.

Their main function is to receive energy from the main battery and distribute it to the various systems of the vehicle, such as electric motors, the charging system, air conditioning devices and other electronic components.

Main Functions

Energy Distribution

Distributes energy from the battery to the vehicle's other electrical and electronic components, regulating the amount of energy each system receives as needed.

Motor Control

It manages the energy that powers the electric motor and various auxiliary systems such as lights, heating, air conditioning and infotainment.

Performance Optimization

Improves vehicle efficiency by ensuring energy is optimally distributed to extend vehicle range and significantly improve operational reliability.

Monitoring

It constantly monitors energy levels and the status of electrical system components, preventing overloads and short circuits.

Charge Management

Coordinates battery charging, ensuring that current is delivered correctly and safely by the charging management system.

Protection

It intervenes to temporarily deactivate circuits, protecting the vehicle from potential electrical damage and failures.

Typical components of a PDU in an Electric Vehicle:

Cables and Connections
BMS
Fuses and Protection Devices
Pre-Charge
Current and Voltage Measurement
HVIL (High Voltage Interlock Loop)
Shielding
Control and Monitoring Units
Contactors and Connectors

In summary, the PDU is essential for the safe and efficient management of energy in an electric vehicle, allowing optimal and controlled distribution of energy between the various components of the vehicle's electrical system.

Why Install a PDU for Your Vehicle?

The PDU is a strategic element to optimize energy management, improve vehicle reliability & ensure compliance with safety regulations.

A well-designed PDU ensures precise and intelligent distribution of energy, powering all the main systems of the vehicle, from electric motors to auxiliaries such as lights and climate control.

This approach not only protects the system from overloads and short circuits thanks to constant monitoring the circuits, but also allows to maximize the overall efficiency, extending the operating autonomy.

Standard Models

PDU Comparison

Features	Model S	Model M	Model L	Model XL
Voltage	Up to 48VDC	Up to 96VDC	Up to 450VDC	Up to 800VDC
Rated Current	300A	300A	500A	500A
Max Input	2	2	3	3
Power Output	4	4	5	5
Auxiliary Output	3	3	3	3
Auxiliary Voltage	12V/24V	12V/24V	12V/24V	12V/24V
Fuse Protection	Positive pole	Positive pole	Positive pole	Positive pole
Equipotential Connection	-	✓	✓	✓
Pressure Compensation	✓	✓	✓	✓
Temperature Range	-20 to 50°C	-20 to 50°C	-20 to 50°C	-20 to 50°C
IP & IK Level	IP66/IP67	IP66/IP67	IP66/P67	IP66/IP67
Insulation Monitoring Device	-	✓	✓	✓
HVIL	-	✓	✓	✓
Electronic Control Unit	-	Optional	✓	✓
Precharge / Discharge Circuit	-	✓	✓	✓
DC Contactor	Optional	✓	✓	✓
Temperature Sensor	-	Optional	✓	✓
Current/Voltage Sensor	-	Optional	✓	✓
Communication	Optional	Optional	CAN Open / SAE J1939	CAN Open / SAE J1939
Connection Type	EMC Cable Gland	EMC Cable Gland	PowerLock Connector	PowerLock Connector

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