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HETZENGINEERING

Area · Rail

Rail

Telematics and vehicle data for maintenance fleets – through to analysis for predictive maintenance –, test automation to CENELEC, vehicle electronics and retrofits. From 2027 maintenance delivery as ECM function 4.

Yellow maintenance vehicle on lifting jacks in the maintenance hall, seen diagonally from the side

Services

Between vehicle, workshop and control centre: data that creates availability.

  • 01

    Telematics systems, edge gateways and vehicle data

    We bring telematics systems onto the vehicles – including existing fleets for which no interface documentation is left: reverse engineering of the vehicle systems, connection via CAN, MQTT and REST, real-time acquisition, analysis and visualisation of vehicle data, scalable dashboards, automated test systems, supplier coordination. This includes the electronics and electrical engineering on the vehicle: selection and integration of the telematics unit, connection to vehicle buses and sensors, retrofit concept. Reverse engineering is not limited to telematics: we apply it to any vehicle or workshop system that needs to be connected, reproduced or replaced.

    ResultRunning telematics solution on the vehicle, dashboards, test systems – data-driven fleet availability

    • Telematics retrofit
    • Vehicle electronics
    • Reverse engineering
    • CAN
    • MQTT
    • REST
  • 02

    Data analysis and predictive maintenance

    The vehicle and machine data collected is not just displayed but analysed: data preparation, condition and availability KPIs, detection of anomalies and trends, data-driven support for maintenance planning – from condition-based to predictive.

    ResultAnalyses, KPIs, early warnings as the basis for maintenance decisions

    • Predictive maintenance
    • Data analysis
    • Python
    • Grafana
    • PowerBI
    • MQTT
  • 03

    Remote diagnostics and fleet tools

    Tools for workshop and control centre: read fault memories remotely, compare states and alarms across the fleet, manage software versions and configurations, plan deployments on real data. Built on the telematics we help set up – as web interface, dashboard or interface to the existing maintenance system.

    ResultDiagnostic access, fleet overview, interface to the maintenance system

    • Remote diagnostics
    • Fleet management
    • Dashboards
    • Interfaces
  • 04

    Cybersecurity for OT and rail

    Connected vehicles and plants need protection that fits operations: threat analysis and zone concept to IEC 62443, secure development processes (IEC 62443-4-1, CRA readiness), hardening of gateways and telematics units, secure remote access and update paths. For railway applications along TS 50701 – pragmatic, verifiable, documented.

    ResultThreat analysis, zone and measures concept, hardening guide

    • IEC 62443
    • TS 50701
    • OT security
    • CRA
    • Hardening
  • 05

    Test automation to CENELEC

    Test automation architecture to EN 50126, system tests for ETCS Level 2 and above, smoke tests of the driver machine interface (DMI) to EN 50128 and EN 50159, hardware-in-the-loop. Prototypes that transfer to other test teams – interlocking, for instance.

    ResultTest automation architecture, running prototype, HIL

    • EN 50126
    • EN 50128
    • EN 50159
    • ETCS
    • HIL
  • 06

    ECM function 4 – maintenance delivery

    In preparation · target 2027

    Maintenance delivery under EU Regulation 2019/779 – with a focus on electrical engineering: testing, repair and retrofitting of electrical and electronic vehicle systems, from the telematics unit to the controller. Certification is in preparation, target 2027; the exact scope is currently being defined. In the longer term we also support ECM and maintenance processes – from maintenance development to data-based planning. Those who talk to us early help shape it.

    ResultFrom 2027: certified maintenance of electrical vehicle systems

    • EU 2019/779
    • ECM
    • Electrical engineering
    • Vehicle electronics

Technology and standards

  • EN 50126
  • EN 50128
  • EN 50159
  • ETCS
  • CAN
  • MVB
  • MQTT
  • REST
  • HIL
  • Python
  • SQL
  • Grafana
  • PowerBI
  • Embedded C/C++
Yellow network maintenance vehicle in side view on open track
Maintenance fleet: vehicle data as the basis for availability
Rail vehicle between lifting jacks in a maintenance hall
Maintenance hall: where the data has to arrive
Track maintenance machines on several tracks in evening light
Machine pool: telematics via CAN, MQTT and REST

References in this area

Engagements since 2018. Details on the projects page.

All projects
  • since 04/2025

    DB InfraGO

    End-to-end technical project lead for a telematics solution: real-time acquisition and analysis of vehicle data, reverse engineering, dashboards, automated test systems, supplier coordination.

  • 2018–2019

    Siemens Mobility

    Proof of concept for test automation of ETCS system tests Level 2+: architecture to EN 50126, DMI smoke tests to EN 50128/50159, HIL, transfer to further test teams.

Reverse engineering, firmware and protocols outside rail?

Go to Embedded Systems – Industry

Vehicle data that reaches the workshop.

Let's talk about telematics, predictive maintenance, test automation or your path to ECM certification.

Book an intro call30 min · online · no obligation

What happens next

  1. 01

    Intro call

    30 minutes online: your task, our questions, a first assessment.

  2. 02

    Short written assessment

    Whether and how we can help, which approach fits, roughly what it takes.

  3. 03

    Offer with a clear scope

    Service, result, time frame – you decide, we start.

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