Model Based Diagnosis of Both Sensor-Faults and Leakage in the Air-Intake System of an SI-Engine 1999-01-0860
Many model based solutions to diagnosis problems in SI-engines have been discussed in literature. However most presented methods are useful only for a specific class of faults. Here a systematic and more general method is presented. With this method, which is based on a structure of hypothesis tests, it is possible to diagnose a large variety of different types of faults. The method is applied to the diagnosis of sensor-faults and leakage in the air-intake system of an SI-engine. The features of the method are demonstrated by using experiments on a real SI-engine. The experiments show that the method is capable to diagnose both leakage and different types of sensor faults. Both detection and isolation are considered. It is for example possible to distinguish between a manifold leak and a manifold pressure sensor fault.
Citation: Nyberg, M., "Model Based Diagnosis of Both Sensor-Faults and Leakage in the Air-Intake System of an SI-Engine," SAE Technical Paper 1999-01-0860, 1999, https://doi.org/10.4271/1999-01-0860. Download Citation
Author(s):
Mattias Nyberg
Affiliated:
Vehicular Systems, ISY, Linköping University
Pages: 13
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
On- and Off-Board Diagnostics-PT-81, Electronic Engine Controls 1999: Neural Networks, Diagnostic and Electronic Hardware, and Controls-SP-1419, SAE 1999 Transactions - Journal of Engines-V108-3
Related Topics:
Manifolds
Sensors and actuators
Pressure
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