The invention refers to a device for generating auxiliary electrical energy in a generator, which is situated in a vehicle, particularly a magnetic levitating vehicle (MAGLEV vehicle) connected to a magnetic pole rotor. This magnetic pole rotor is moved without touching relative to a fixed motor track made as a track, where, using the electro-dynamic interaction between the magnetic pole rotor and the track motor part, the torque generated by the magnetic pole rotor is transmitted to the generator. The purpose of the invention is to introduce the generation of auxiliary electrical energy on board vehicles without using propellers without contact and without a wandering field winding from vehicle movement. According to the invention, this is achieved by the track motor part being an inactive electrically conducting rail and the torque being transmitted using the eddy current effect. The magnetic pole rotor is made as a magnetic pole rotor without iron and is arranged above an electrically conducting support rail of an electrodynamic support system.