Abstract
When arguing safety for an autonomous road vehicle it is considered very hard to show that the sensing capability is sufficient for all possible scenarios that might occur. Already for today’s manually driven road vehicles equipped with advanced driver assistance systems (ADAS), it is far from trivial how to argue that the sensor systems are sufficiently capable of enabling a safe behavior. In this paper, we argue that the transition from ADAS to automated driving systems (ADS) enables new solution patterns for the safety argumentation dependent on the sensor systems. A key factor is that the ADS itself can compensate for a lower sensor capability, by for example lowering the speed or increasing the distances. The proposed design strategy allocates safety requirements on the sensors to determine their own capability. This capability is then to be balanced by the tactical decisions of the ADS equipped road vehicle.
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Notes
- 1.
The SOTIF PAS is in working draft phase and is available for internal review as of Q1 2017. Hence the statements below are subject to change based on the outcome of the development process of the PAS.
- 2.
Since this description is based on a committee draft, the content is subject to change.
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Acknowledgements
The research has been supported by the Swedish government agency for innovation systems (VINNOVA) in the ESPLANADE project (ref 2016-04268).
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Johansson, R. et al. (2017). A Strategy for Assessing Safe Use of Sensors in Autonomous Road Vehicles. In: Tonetta, S., Schoitsch, E., Bitsch, F. (eds) Computer Safety, Reliability, and Security. SAFECOMP 2017. Lecture Notes in Computer Science(), vol 10488. Springer, Cham. https://doi.org/10.1007/978-3-319-66266-4_10
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DOI: https://doi.org/10.1007/978-3-319-66266-4_10
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