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Advanced Engine Misfire Detection for SI-Engines
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 24, 1997 by SAE International in United States
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This paper presents a system concept for detecting combustion misfire. The relevant research grew out of the more stringent requirements for On-Board Diagnostic systems (OBDII) mandated by the California Air Resources Board (CARB), effective as of model year 1997 onward. The system concept is based on evaluation of variations in crankshaft speed. Processes using engine roughness are applied in non-critical operating areas and/or on engines with a small number of cylinders. The modulation process is used in more critical areas. Research was done using a 12-cylinder engine and indicated the potential to comply with the California Air Resources Board's regulations for the model year (MY) 1997 and later.
CitationFörster, J., Lohmann, A., Mezger, M., and Ries-Müller, K., "Advanced Engine Misfire Detection for SI-Engines," SAE Technical Paper 970855, 1997, https://doi.org/10.4271/970855.
- SAE Paper 930399 Misfire Evaluation by Evaluating Crankshaft Speed - A Means to Comply with OBD II Klenk Martin Moser Winfried (Robert Bosch GmbH) Mueller Werner Wimmer Wolfgang (Audi AG)
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- Azzoni, P. Cantoni, G. Minelli, G. Moro, D. Rizzoni, G. Ceccarani, G. Mazzetti, S. Measurement of Engine Misfire in the Lamborghini 533 V-12 Engine Using Crankshaft Speed Fluctuations,” SAE 950837 1995
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