Use of Quality Metrics for Functional Safety in Systems of Cooperative Vehicles

Looking at functional safety of vehicles, we have seen an evolution from federated to integrated E/E architectures. When extending the way of specifying and analysing functional safety to also address cooperative functionality, it is not possible to keep a static view of the boundaries of the system for which to ensure safety. This is because the set of vehicles realizing a cooperative function may change a lot during the execution of the cooperative function. In this work in progress paper we suggest to move part of the task to show safety, from design time to run time. This implies that it will become necessary to monitor the system at run time, continuously calculate its quality and share that information between the individual vehicles to assert that the system is safe. In order to accomplish this, appropriate metrics are needed, both during design time and run time. Inspired by information theory, this paper sketches some common properties for metrics, and indicates how that can be beneficial.

Info

Author(s)
Kenneth Östberg, Rolf Johansson
Publication type
Published in
Proceedings of the SAFECOMP 2012 Workshop on Architecting Safety in Collaborative Mobile Systems - ASCoMS, September 2012, Magdeburg
Project
KARYON - Kernel-Based ARchitecture for safetY-critical cONtrol (associated project)
Year of publication
2012

Safer – Vehicle and Traffic Safety Centre

SAFER is the open research arena where researchers and expertise work together to create safe mobility. Our traffic safety approach covers people, vehicles and the infrastructure – and together we contribute to safer road transports and smarter, more sustainable cities.

Contact information

SAFER

Lindholmspiren 3A
SE-417 56 Göteborg
Sweden

 +46 31-772 21 06
 safer [at] chalmers.se