Technology

Autonomous driving software, tested on digital twins of real bus routes.

Autonomous driving already works in environments far more open than a bus route. Our job is to adapt it to fixed-route public transport and to real buses, then validate it route by route.

The route is mapped before the bus drives it

Because the route is fixed, we can map it in advance and test the software against that map in simulation. The software on the bus is the same one that was tested.

The live view is unavailable. Ugo's route simulation and validation process are described below.

The bus pulls into a stop, lets a passenger off and yields at the crossing. Illustrative visualization, not recorded vehicle data.

The stack

  • Localization

    Maps of the route, with LiDAR and GNSS/IMU placing the bus precisely on them.

  • Perception

    Detects and tracks vehicles, cyclists and pedestrians around the bus.

  • Prediction

    Estimates where each road user is likely to go next.

  • Planning

    Chooses a path and speed for the vehicle: lane keeping, stops, docking and yielding.

  • Control

    Turns the plan into steering, braking and propulsion commands through the retrofit kit.

  • Safety supervisor

    Watches the whole system and is designed to bring the bus to a controlled stop when something is wrong.

How we approach safety

  • Safety driver

    Early testing and deployments run with a safety driver on board who supervises, intervenes and logs.

  • Controlled stop

    If the system degrades, the bus is designed to reach a minimal-risk condition rather than carry on.

  • Standards

    We design toward ISO 26262, ISO 21448 and UL 4600, with cybersecurity and software updates per UN R155 and R156. These are design targets; Ugo is not certified to them.

  • Evidence

    Simulation coverage, test logs and safety analyses build up route by route, and decide when a route expands.

The full safety page

From simulation to the street

  1. Done

    System architecture

    Software stack, sensor concept and safety concept defined for fixed-route city buses.

  2. Done

    Operator validation

    First-route requirements defined together with European transit operators.

  3. We are here

    Simulation

    Digital twins of real routes to develop and test the full stack.

  4. Coming soon

    Hardware-in-the-loop

    Real compute and sensors in the loop, simulated world.

  5.  

    Closed course

    The retrofitted bus on a private track, edge cases staged on purpose.

  6.  

    Supervised on-road

    Public roads, with a safety driver on board.

  7.  

    Commercial operations

    Autonomous service on a defined route with an operator, expanded as evidence and approvals allow.

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