Information on the high-voltage box

The high-voltage box is the highly integrated battery charger and power supply control center on board of the electric car. As a highly integrated transformer in the electric car, it combines three functions:

1. Charging the vehicle battery at an AC charging point (such as public and private charging stations).
2. Delivering the necessary 12-volt power requirement in the vehicle electrical system – for functions such as lighting, vehicle electronics and in-car connectivity, for example.
3. DC charging: If a charging current with a voltage of up to 800 volts is supplied to the car at a rapid charging station, the High Voltage Box ensures safe transmission of the charging current to the high-capacity battery. The High Voltage Box also provides the high-voltage power supply from the battery to the electric drive.

Advantages for the driver:

• Covers all common charging options (quick charging, wallbox, public, private).

Advantages for the OEM:

• Integrated electronics save wiring, integration effort, installation space and costs.
• Coverage of global charging standards and power grids.

The intention of the high-voltage box is to combine different functions like charging, low-voltage DC/DC and power distribution.

The fully integrated electric axle drive (EMR3) integrates a powerful electric motor, reducer and highly optimized power electronics in a compact and lightweight unit. It is manufactured at the Vitesco Technologies site in Tianjin, China, for the electric vehicle volume market.