Browse Publications Technical Papers 2006-01-0054
2006-04-03

On-Board Fuel Property Classifier for Fuel Property Adaptive Engine Control System 2006-01-0054

This paper explores the possibility of on-board fuel classification for fuel property adaptive compression-ignition engine control system. The fuel classifier is designed to on-board classify the fuel that a diesel engine is running, including alternative and renewable fuels such as bio-diesel. Based on this classification, the key fuel properties are provided to the engine control system for optimal control of in-cylinder combustion and exhaust treatment system management with respect to the fuel. The fuel classifier employs engine input-output response characteristics measured from standard engine sensors to classify the fuel. For proof-of-concept purposes, engine input-output responses were measured for three different fuels at three different engine operating conditions. Two neural-network-based fuel classifiers were developed for different classification scenarios. Of the three engine operating conditions tested, two conditions were selected for the fuel classifier to be active. However, the most suitable operating condition for active classification was found to be a light load condition. The results show that the classifier can clearly classify the three different test fuels at the predetermined engine operating conditions.

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