Daimler Buses Ensures Maximum Charging Uptime for Electrified Bus Depots

The Challenge

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Aspublic transport operators across Germany electrify their bus fleets, charging infrastructure reliability becomes mission-critical. Bus depots must ensure vehicles are fully charged and ready tooperate every day, downtime or charging interruptions directly impactpublic transportation services.
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Daimler Buses Solutions, the system integrator for charging infrastructure within Daimler Truck, works closely with depot operators who demand highly resilient charging architectures capable of operating even during internet outages. Traditional charging setups rely on a single backend connection,meaning that connectivity disruptions could interrupt charging operations.
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Additionally, different depots often use different Charge Point Management Systems (CPMS), like for example Spirii or Greenflux. For Daimler’s service teams, this fragmented landscape created operational complexity, requiring them to monitor multiple backend platforms across their customer base.

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The Solution

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To address these challenges, Daimler implemented FLEXECHARGE’s broker forking architecture, enabling a redundant and flexible backend setup for EV charging infrastructure.
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With broker forking, charging stations connect simultaneously to multiple backend systems, including:
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• Primary backend: manages all charging sessions under normal conditions
• Secondary backend: a local or backup system that automatically takes over if connectivity to the primary backend is lost
• Service backend: dedicated to monitoring, diagnostics, and operational tasks
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This architecture ensures seamless failover and uninterrupted charging sessions, even in the event of network outages. By mirroring OCPP message sacross systems, the secondary backend can immediately resume controlif the primary backend disconnects, preserving ongoing charging transactions.
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Atthe same time, FLEXECHARGE’s platform enables Daimler to centralize operational monitoring. Regardless of which backend a depot operates on, Daimler’s service teams can monitor infrastructure performance through a single dashboard, simplifying fleet-wide operations and improving service efficiency.

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Next Steps

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As electrification of public transport accelerates, Daimler continues toexpand this resilient architecture across new bus depots.
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By combining redundant backend connectivity, operational observability, and flexible integration with multiple CPMS platforms,the solution provides a robust foundation for large-scale fleetcharging.
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Going forward, Daimler aims to further scale reliable charging infrastructure to support the growing electrification of buses and commercial vehicles, ensuring that charging networks remain stable, flexible, and ready for the demands of tomorrow’s electric fleets.