Model Based Diagnosis of the Air Path of an Automotive Diesel Engine
A model based diagnosis system for the air-path of a turbo-charged
diesel engine with EGR is constructed. The faults considered were
air-mass flow sensor fault, intake-manifold pressure sensor fault,
air-leakage, and the EGR-valve stuck in closed position. A
non-linear engine model, with four states, is constructed. The
diagnosis system is then constructed in the framework of
\emph{structured hypothesis tests}, and by using adaptive observers.
The diagnosis system is successfully evaluated in a real car driving
on the road.
Mattias Nyberg, Thomas Stutte and Volker Wilhelmi
IFAC Workshop: Advances in Automotive Control,
2001
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