SI-Engine Air-Intake System Diagnosis by Automatic FDI-Design
Because of environmentally based legislative regulations, diagnosis of
automotive engines has become increasingly important. In the design of
diagnosis systems, it is important to strive for optimum performance
and at the same time, minimize the amount of engineering work
required. Therefore, it is desirable to have a highly automated design
procedure, in which diagnosis performance is optimized. It is discussed
how a diagnosis system for the air-intake system of an SI-engine, can
be constructed with the help of automated tools. In particular the
problem of residual and threshold selection is addressed. For this a
fully automatic algorithm is proposed and it is experimentally shown
that the algorithm successfully manage to generate a well functioning
diagnosis system.
Mattias Nyberg
IFAC Workshop Advances in Automotive Control,
1998
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