A systematic inclusion of diagnosis performance in fault tree analysis
Safety is of major concern in many applications such as in automotive
systems and aerospace. In these applications it is standard to use
fault trees, and a natural question in many modern systems that
include sub-systems like diagnosis, fault tolerant control and
autonomous functions, is how to include the performance of these
algorithms in a fault tree analysis for safety. Many possibilities
exist but here a systematic way is proposed. It is shown both how
safety can be analyzed and how the interplay between algorithm design
in terms of missed detection rate and false alarm rate is included in
the fault tree analysis. Examples illustrate analysis of diagnosis
system requirement specification and algorithm tuning.
Jan Åslund, Jonas Biteus, Erik Frisk, Mattias Krysander and Lars Nielsen
IFAC World Congress,
2005
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