• Preparation and documentation of electrical concepts for technical offers for new vehicles, refurbishments, component retrofits; presentation of the concepts for different target groups in different bid phases
  • Cooperation in projects for the implementation of electrical concepts
    • Analysis and commenting on customer requirements
    • Preparation of requirement specifications
    • Concept adaptation / support in clarification with customers
    • Concepts for functional electrical circuit diagrams
    • Descriptions of concepts and components
    • Support in the commissioning of vehicles
    • Support in the homologation of vehicles (safety verification, clarifications with approval/acceptance authorities, etc.

Special Knowledge:

  • Design of conventional electrical safety circuits (up to SIL4), e.g.home1
    • Deadman
    • Safety loops
    • Vital traction inhibit
    • Vital train control (e.g., central door control)
    • Monitoring loops
  • Diagnostic concepts (incl. preventive diagnostics)
  • Integration of train protection systems in trains (hardware)
    • Automatic train stop, LZB, ATC (general, different manufacturers)
    • Communication Based Train Control (CBTC), suitable up to GoA4
  • Driverless and unattended operation up to GoA4:
    • Hazard and risk analyses, definition of safety requirements
    • Definition of the operational concept
    • Remote control in GoA4 operation
    • Analysis and description of failure scenarios (use cases)
  • Qualitative safety verification for conventional electrical systems

Creation of Concepts Specifically for Metro Vehicles:

In the past, I have often developed concepts for complete systems and for individual components that should be integrated into the overall vehicle system. In my professional life, I have created all types and kinds of electrical circuits of rail vehicles. I have a very good overview of the electrical equipment of the vehicles, especially with metros.

In the past, I have dealt with the following issues, sometimes very intensively:

  • Main circuit (design, components, control)
  • Auxiliary power supply (AC/DC, design, and control)
  • Concept for train control (electronic components, data bus systems)
  • Conventional vehicle control including operating mode selection
  • Fire alarm systems
  • Speed measuring equipment
  • “Black boxes”
  • Safety loop for emergency brake including components that intervene in it
  • Traction interlocking
  • Integration of train protection systems
  • Passenger emergency intercom systems
  • Passenger information systems
  • Passenger counting systems
  • Radio systems
  • Auxiliary equipment
  • Interior and exterior lighting
  • Heating, ventilation, air conditioning
  • Doors (local and central door control, monitoring)
  • Compressed air supply
  • Integration of mechanical/pneumatic braking systems including control system
  • Coupling devices including control


Member of the DKE working group 351.3.4 "Urban transport" (Guest) during the time of preparation of the standard IEC 62290/Part 3:

Railway applications – Urban guided transport management and command/control systems – System requirements specification.