E-049
A fault detection and isolation method for automotive engines
Authors: L. Magni, R. Scattolini, Università di Pavia; C. Rossi, Magneti Marelli Engine Control Unit, Italy
Abstract
This paper presents an approach to the development of diagnostic systems for on-line
diagnosis of faults in automobile engines. The proposed technique consists of describing
the plant devices, the sensors, the actuators and diagnostic tests as discrete-event
systems. A formal composition rule of these models is given and an inference procedure
for the identification and isolation of the faults is discussed. Temporal information
is also considered to speed up the fault isolation procedure and, in some cases,
to uniquely identify faults with the same static fault signature.
Dr. Ing. Magni Lalo
Dipartimento di Informatica e Sistemistica
Universita' di Pavia
via Ferrata 1, 27100 Pavia, Italy
tel: ++39.382.505437
fax:++39.382.505373/525638
magni@conpro.unipv.it