1981 – 1992

Service provider for the DR (ZFIV), Berlin S-Bahn:

-       Specification and testing of the electronics of new vehicles (e.g., BR 270 - today BR 485/486).

-       Modernisation of old vehicles: development/support/testing of new electronic components

Maintenance strategies especially for electronic components

1992 – 1994

Siemens AG Berlin (ANL):

Integration of passenger information systems (IBIS 2) of different expansion levels (IBIS/ELA/radio, IRIS, IMU, displays, validators/ticket vending machines, emergency intercoms, passenger counting, “black boxes”) in trams/buses in cooperation with Siemens/Häni - Switzerland (both retrofitting projects and new vehicles).

Projects: Berlin (BVG Trams), Dresden, Frankfurt/Oder, Rostock, Brandenburg, (buses and trams)

1994 – 2020

Siemens AG / Siemens Mobility GmbH Erlangen, circuit technology for metro systems, technical bidding department:

Creation of a variety of concepts for offers in the electrical engineering sector, participation in the development of platform concepts. After receiving the order, I was involved in the role of a "system integrator" to coordinate the developed concepts with the customers and to implement these concepts. I also was involved in the preparation of functional circuit diagrams, in the commissioning, and in the homologation of the vehicles. Examples:

1994 – 1996

Stuttgart DT 8.10 (tram, cooperation with ADtranz)

1996 – 2001

Metro Vienna, V-Wagen

2001 – 2008

Metro Nuremberg DT3/DT3-F, GoA4 with LZB 524

2008 – 2010

Platform project INSPIRO (concepts: main circuit, earthing, auxiliary power supply system, TCMS, safety loop systems, ATC systems, doors).

2009 – 2013

Metro Warsaw (INSPIRO), GoA2 with SOP3 (ZWUS/Bombardier Poland)

2013 – 2015

Metro Riyadh (Red Line, Blue Line), GoA4 with Trainguard CBTC

2013 – 2015

Participation in the creation of basic concepts for metros (creation of architecture patterns for vital electrical functions),

Participation in the specification of the "vital" traction interlock up to SIL3 for GoA4 vehicles

2016 – 2017

Metro Sofia (INSPIRO) in cooperation with NEWAG (Poland), GoA2 with Trainguard MT3


Metro Nuremberg, G1, prepared for CBTC system

2015 – 2020

Metro Oslo, MX 3000, concept for retrofitting a CBTC system

2017 – 2018

Vienna metro, X-Wagen, GoA2/GoA4, with LZB 513 and AFF based on Trainguard MT3

2016 – 2020

Shanghai metro, line 18 (GoA4), cooperation with ZELC and CASCO, CBTC system from ALSTOM/CASCO


Munich metro, type C2, concept for retrofitting a CBTC system