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  • 1.
    Flink, Kristian
    et al.
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Söderberg, Andreas
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Hedberg, Johan
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Guide gällande dokumentationskrav för EN ISO 138492020Report (Other academic)
    Abstract [en]

    The European Machinery directive gives the requirements for safe machinery, and safe machine control, within the European Union. The European standard EN ISO 13849-1 describes safety-related machine control. This report explains some of the documentation requirements, especially for safety-related machine control systems.

    Download full text (pdf)
    fulltext
  • 2.
    Gyllenhammar, Magnus
    et al.
    Zenuity AB, Sweden.
    Johansson, Rolf
    Autonomous Intelligent Driving, Sweden.
    Warg, Fredrik
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Chen, DeJiu
    KTH Royal Institute of Technology, Sweden.
    Heyn, Hans-Martin
    Volvo Technology AB, Sweden.
    Sanfridson, Martin
    Volvo Technology AB, Sweden.
    Söderberg, Jan
    Systemite AB, Sweden.
    Thorsen, Anders
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Ursing, Stig
    Semcon Sweden AB, Sweden.
    Towards an Operational Design Domain That Supports the Safety Argumentation of an Automated Driving System2020In: 10th European Congress on Embedded Real Time Systems (ERTS 2020), Toulouse, France, 2020Conference paper (Refereed)
    Abstract [en]

    One of the biggest challenges for self-driving road vehicles is how to argue that their safety cases are complete.The operational design domain (ODD) of the automated driving system (ADS) can be used to restrict where the ADS is valid and thus confine the scope of the safety case as well as the verification. To complete the safety case there is a need to ensure that the ADS will not exit its ODD. We present four generic strategies to ensure this. Use cases (UCs) provide a convenient way providing such a strategy for a collection of operating conditions (OCs) and furth erensures that the ODD allows for operation within the real world. A framework to categorise the OCs of a UC is presented and it is suggested that the ODD is written with this structure in mind to facilitate mapping towards potential UCs. The ODD defines the functional boundary of the system and modelling it with this structure makes it modular and generalisable across different potential UCs. Further, using the ODD to connect the ADS to the UC enables the continuous delivery of the ADS feature. Two examples of dimensions of the ODD are given and a strategy to avoid an ODD exit is proposed in the respective case.

    Download full text (pdf)
    fulltext
  • 3.
    Vedder, Benjamin
    et al.
    RISE Research Institutes of Sweden.
    Svensson, Joel
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Vinter, Jonny
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Jonsson, Magnus
    Halmstad University, Sweden.
    Automated Testing of Ultrawideband Positioning for Autonomous Driving2020In: Journal of Robotics, ISSN 1687-9600, E-ISSN 1687-9619, Vol. 2020, article id 9345360Article in journal (Refereed)
    Abstract [en]

    Autonomous vehicles need accurate and dependable positioning, and these systems need to be tested extensively. We have evaluated positioning based on ultrawideband (UWB) ranging with our self-driving model car using a highly automated approach. Random drivable trajectories were generated, while the UWB position was compared against the Real-Time Kinematic Satellite Navigation (RTK-SN) positioning system which our model car also is equipped with. Fault injection was used to study the fault tolerance of the UWB positioning system. Addressed challenges are automatically generating test cases for real-time hardware, restoring the state between tests, and maintaining safety by preventing collisions. We were able to automatically generate and carry out hundreds of experiments on the model car in real time and rerun them consistently with and without fault injection enabled. Thereby, we demonstrate one novel approach to perform automated testing on complex real-time hardware.

  • 4.
    Warg, Fredrik
    et al.
    RISE Research Institutes of Sweden, Safety and Transport, Electrification and Reliability.
    Ursing, Stig
    Semcon Sweden AB, Sweden.
    Kaalhus, Martin
    Semcon Sweden AB, Sweden.
    Wiik, Richard
    Semcon Sweden AB, Sweden.
    Towards Safety Analysis of Interactions BetweenHuman Users and Automated Driving Systems2020In: 10th European Congress of Embedded Real Time Systems (ERTS 2020), Toulouse, France, 2020Conference paper (Refereed)
    Abstract [en]

    One of the major challenges of designing automateddriving systems (ADS) is showing that they are safe. This includes safety analysis of interactions between humans and the ADS, amulti-disciplinary task involving functional safety and human factors expertise. In this paper, we lay the foundation for a safety analysis method for these interactions, which builds upon combining human factors knowledge with known techniques from the functional safety domain.

    The aim of the proposed method is finding safety issues in proposed HMI protocols. It combines constructing interaction sequences between human and ADS as a variant of sequence diagrams,and use these sequences as input to a cause-consequence analysis with the purpose of finding potential interaction faults that may lead to dangerous failures. Based on a this analysis,the HMI design can be improved to reduce safety risks, and the analysis results can also be used as part of the ADS safety case.

    Download full text (pdf)
    fulltext
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