Short answer: to adapt an AVM system to electric buses joining your fleet, the AVM must see the vehicle's energy data (state of charge, range) over open onboard protocols such as FMS and ITxPT, alert dispatchers before a bus runs flat, and sequence charging at the depot around departure priorities. A SaaS AVM with an open hardware architecture does this without replacing the onboard equipment.
Fleet electrification is not just an HR and financial topic. It is an operational transformation that directly affects the AVM. An electric bus is not operated like a diesel: its range varies with temperature, route profile, and driving style. It needs charging, which must be integrated into service scheduling. And if the AVM cannot see this data, the operator is running a partially blind fleet.
What changes with electric buses
Range management. An electric bus has a range that varies between 150 and 350 km depending on the model, weather, and route profile. The AVM must alert the dispatcher before a bus runs flat on the line.
Charge scheduling. Electric buses must be charged during operational troughs. Depot supervision must integrate the state of charge of each vehicle: a bus pulled off charge at 30% to cover an 80 km line is an operational problem.
Onboard equipment. Electric buses are often delivered with embedded telematics systems (OBD/FMS gateway). For the AVM to consume this data, it needs an open architecture compatible with these protocols.
What Pysae addresses
Pysae is built on an open hardware architecture: Android tablets onboard communicate via ITxPT and FMS standards, enabling native integration of data from electric bus embedded systems.
Pysae's Depot module integrates a real-time state-of-charge view, intelligent charge sequencing based on departure priorities, and automatic alerts when a vehicle reaches a critical threshold. On the Elios network (Grand Villeneuvois), 100% of the fleet is green with Pysae as the supervision system.
How to adapt your AVM for electric buses: five steps
- Check that the incoming electric buses can be fitted with the onboard terminals of the chosen AVM, or that the AVM can read their embedded telematics (OBD/FMS gateway).
- Define which energy data the AVM should consume, at what frequency, and with which alert thresholds.
- Bring the state of charge of each vehicle into depot supervision, so no bus leaves charge below what its next service requires.
- Build charging constraints into roster construction, and sequence charges by departure priority during operational troughs.
- Set range alerts per vehicle and per line, so dispatchers act before a bus runs flat on the line.
Frequently asked questions
How do I adapt my AVM system for electric buses joining my fleet?
Follow the five steps above: confirm the onboard equipment or telematics gateway, define the energy data and alert thresholds, add state of charge to depot supervision, integrate charging into rosters, and alert on range before the line. The AVM must be able to consume vehicle data over open protocols.
Can an AVM read the state of charge of an electric bus?
Yes, when it consumes the vehicle's embedded telematics through open protocols. Pysae's onboard Android tablets communicate via ITxPT and FMS, which allows native integration of data from electric bus embedded systems.
What range should dispatchers plan for with electric buses?
Between 150 and 350 km depending on the model, the weather and the route profile. Alert thresholds should therefore be set per vehicle and per line rather than fleet-wide.
Does the same approach apply to hydrogen or other zero-emission buses?
The principle is the same: what matters is whether the AVM can consume the vehicle's energy data over open protocols such as FMS and ITxPT, and whether the depot module can account for refuelling or charging constraints in service planning.
Is there a real network running electric buses on Pysae?
Yes. On the Elios network (Grand Villeneuvois), 100% of the fleet is green with Pysae as the supervision system.
Are you introducing electric buses into your network? Talk to our team.