Electronic power steering device for motor vehicle, has electrical servo drive with electric motor, where electronic regulating and controlling device is provided for regulating and controlling electric motor

摘要

The electronic power steering device (1) has an electrical servo drive (8) with an electric motor (9). An electronic regulating and controlling device (11) is provided for regulating and controlling the electric motor, which is provided with electrical energy by a first voltage source. One or multiple additional second voltage sources are provided to support temporarily a unit of the electronic regulating and controlling device. The second voltage source has a galvanic cell or a double layer capacitor.