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  5. Modernization of Trams, Light Rail Vehicles, Underground Trains

Modernization of
Trams, Light Rail Vehicles,
Underground Trains

Modernization Concepts
Integration of Electrical and Electronic Systems
Control and Diagnostics
Further Modernization Procedures

Modernization Concepts
Analysis of existing documentation and data acquisition (manuals, drawings, circuit diagrams, etc.)
Analysis of customer requirements and analysis of modernization specifications
Creation of modernization concepts, feasibility studies and profitability analyses
Modernization concepts for vehicle control systems, vehicle networking and communication equipment
Modernization and retrofitting concepts for electrical vehicle subsystems
Modernization concepts for the interior/exterior, any necessary modifications to the carbody and bogies
Planning of design studies and mock-ups

Integration of Electrical and Electronic Systems
Retrofitting of ventilation and air conditioning technology for the passenger compartment and driver's cab to increase comfort for passengers and staff
Conversion of the drive control system and increase in energy efficiency and reliability (CO2 sensors in the ventilation system)
Modernization of the door systems, raising the safety standard (e.g. via rear-view mirror cameras)
Retrofitting and modernization of a passenger information and video surveillance system with all subsystems
Retrofitting of driver assistance systems such as collision warning systems with/without brake intervention
Retrofitting of Internet-On-Board, media servers and Internet-based customer portals while taking cyber security aspects into account
Modernization of exterior and interior lighting and integration of further electrical and electronic systems

Control and Diagnostics
Modernization of the control technology in trams, light rail vehicles and underground trains
Modernization of the driver's cab
Implementation of modified vehicle utilization concepts as part of the vehicle control system
Increasing the degree of vehicle automation, ATO, CbTC control systems
Supplementation of the diagnostic concept, including new assistance systems if needed
Fleet diagnostics and maintenance information (including predictive maintenance solutions)
Safety control system for light rail vehicles

Further Modernization Procedures
Development of compatibility solutions between old and new vehicles
Substitution of obsolete components
Interior renovations (seats, hand rails, luggage racks, etc.)
Structural repairs and preparation of the vehicle body
Interior/exterior design revision to improve aesthetics
Condition-based maintenance (CBM): Advice and introduction of technical systems in operations
Functional safety, type approval, new authorization