Run time safety analysis for automotive systems in an open and adaptive environment.
Paper i proceeding, 2013
Cooperative vehicles are no longer fiction. A key factor is the ability
for vehicles to exchange information with their environment. The shared information
can be used to realize new functionalities, from virtual traffic lights to
emergency braking, thus with potential to increase safety and efficiency of vehicle
systems. However, external information has inherent uncertainties and this
poses a threat to safety. In this paper we will discuss how to handle these uncertainties
by use of dynamic safety contracts. We propose an extension to
AUTomotive Open System Architecture (AUTOSAR) which consists of a safety
manager which actively enforces the safety rules described in such safety
contract. We also propose to integrate the architecture of an Intelligent
Transport System (ITS) station tightly to AUTOSAR. It is our hypothesis that
such architecture provides a viable platform for run time safety assessment. Future
research work is to evaluate what kind of safety assessments our system
can be able to handle.