Gebr. Bode Gmbh & Co Kg

Alstom Sa

Bode-die Tür Gmbh

Sma Railway Technology Gmbh

Guido Bachmann

Andreas Falk

Benjamin Scheffer

Daniel Andler

Mathias Victor

Gerd Gläsel

Diako Rasekhi

Markus Hermann

Torben Kunzemann

Chawanakorn Mantala

Johannes Weber

Andreas Berger

A method for state-based maintenance of an access device of a vehicle, in particular of a public transport vehicle, wherein the access device includes a moveable element and an electric drive for moving the moveable element and is attached to the vehicle. The drive is controlled with control signals, wherein actual state signals for describing the state are generated based on a detected state of the access device. The control signals are applied to a physical simulation model for computationally simulating the access device and determining expected target state signals and wherein based on a comparison between the actual state signals and associated target state signals, a maintenance state of the access device is determined. The simulation model is adjusted based on the comparison between the actual state signals and the associated target state signals.

Method for detecting an obstacle in an access device

Disclosed is an electronic circuit for the bidirectional conversion of a high input voltage to a direct-current output voltage with indirect coupling, more specifically such a circuit for use in a power supply system for rail vehicles, that is provided with a primary converter, one single common transformer and a secondary converter. The primary converter includes at least three primary converter sections connected in series, the output lines of which are each connected to a respective one of the transformer primary windings.

Medium frequency energy supply for rail vehicles

Growing community of inventors

Guxhagen, Germany

Guido Bachmann