Abstract
A new European On Board Diagnostic system (EOBD) for real time monitoring of emissions from gasoline engines has been developed, set up and applied in order to satisfy the Euro 3 and Euro 4 regulations. The new system has been required in order to control the performances of fuel injection, closed-loop control and three-way catalyst [1].
The EOBD system has been legislated by the Directives 98/69, 2002/80 and 2003/76 which are mandatory for Euro 3 and Euro 4 configurations. Therefore, the EOBD diagnosis has been developed to check the following systems/components:
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Catalyst efficincy.
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Oxygen sensor.
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Misfiring rate.
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Fuel system components.
This article reports preliminary indications to perform a catalyst efficiency monitoring. A computational procedure is applied for evaluating the oxygen amount delivered by the catalyst in order to indirectly estimate the catalyst oxygen storage capacity. The EOBD has been applied with the new catalyst layout (pre and main, close coupled, etc.) in order to meet Euro 3 and Euro 4 Standards (2000/2005).
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References
“Exhaust emission and fuel consumption of spark ignited engines in the first decade of years 2000”, ATA vol. 54-no3/4, Cavallino, Celasco, Saroglia, Marzo 2001
“Fuel consumption and emission reduction entering the XXI century”, ATA, Boggio, Cavallino, Saroglia, 1999.
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“Development and set up of an EOBD diagnostic system for low-emission gasoline engines”, PhD Thesis, Celasco, 2000.
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© 2004 Springer-Verlag Berlin Heidelberg
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Celasco, A., Cavallino, F. (2004). European on Board Diagnostic Catalyst Efficiency Measured on Board and on Test Bench. In: Valldorf, J., Gessner, W. (eds) Advanced Microsystems for Automotive Applications 2004. VDI-Buch. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-76989-7_17
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DOI: https://doi.org/10.1007/978-3-540-76989-7_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-20586-9
Online ISBN: 978-3-540-76989-7
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