Device with at least two propelled units has electrical supply units removably mounted on propelled units and number of electrical supply units is less than number of propelled units

摘要

The device has at least two propelled units (2) whose running gears (3) are driven by an electric motor drive unit (8) driven, via a control unit (9) and an electrical supply unit (10) that provides the drive unit and the controller with the required energy. At least the electrical supply unit is removably mounted on the units and the number of electrical supply units is less than the number of units.