What safety concept is implemented in Unimog U5023 vehicle?

One of the important control systems in any of the hardware architecture be it autonomous vehicle, commercial vehicle or any sort of Industrial automation phenomenon, Fail-safe control system has to be designed. “The fail-safe control system interacts with safety-relevant hardware and transmits control data of the mission software to the hardware abstraction.” The safety implementation is provided with a reactive minimalistic. The safety zone for the vehicle is created by covering blind spots with four safety laser sensors.

When the vehicle is entering in to a critical zone, virtual bumpers are implemented to react to unintended objects. Thereby, the system reacts to any unsafe state of the system. Each laser scanner is mounted to create a perception of a virtual bumper which is contained in the reactive safety behaviour network and combined by a maximum fusion.

The highest bumper activity is determined by suppressing the safe-state. The higher level is monitored by the fail-safe layer and also the mission control software through signal generated by heartbeat and reacting to system failures.

Source:- Commercial Vehicle Technology by Karsten Berns and et al.

 

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