What is the function of the Audi A1's electromechanical power steering system?

I've heard that the Audi A1 has an electromechanical power steering system. What exactly is its purpose and how does it work?

The primary function of the Audi A1's electromechanical power steering system is to assist with steering and enable better handling and control of the vehicle. It works by converting electrical signals from the steering wheel into mechanical force on the steering column.

While traditional hydraulic power steering systems used engine power to assist with steering, the Audi A1's electromechanical system is more efficient and allows for different steering modes and customization.