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Methodological Framework for Primary Automotive Safety: System Safety Approach for the Determination of Critical Scenarios
Technical Paper
976143
Sector:
Language:
English
Abstract
The purpose of the research presented in this paper is to
provide a methodological framework for primary automotive safety.
The methodology proposed is based on a systemic approach of driving
and follows the principles of System Safety Analysis. The paper
first covers the general concepts involved in the approach. A
Generic Driving Model is proposed and the notions of Operating
Range and Accident Mechanism are explained. An Accident Typology
and a Classification of Safety Systems are provided on the basis of
these notions.
A method for the Determination of Critical Scenarios encountered
in automotive driving is then proposed. This method first requires
a qualitative modeling of the operation of the driver-vehicle
system in a given driving phase. The different possible failures
are then deduced from this model which leads to a Qualitative
Failure Model. Finally, the malfunction probabilities must be
quantified using In-Depth Accident Investigations and Driving
Simulator Experiments. The Quantified Malfunction Model obtained
can be used for Specification and Probabilistic Safety Assessment
of crash avoidance systems.