I can't find generatorische Bremsen anywhere, but my tech dico gives generator brakes for Generatorbremsen. Maybe it's the same thing. The reference is to brakes for a transrapid train.

Acceleration and regular braking of the vehicle is performed by the propulsion system, a synchronous longstator linear motor. In addition to these generator brakes, the braking function of the vehicle is assured by the modular eddy-current brakes. The individual eddy-current braking magnets act on the guidance rails of the guideway and guarantee the braking of the vehicle.