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The Most Significant Vehicle Operating Parameter for Real-World Emission Levels
Technical Paper
2004-01-0636
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The present work investigated the real-world emission performance of a typical light-duty gasoline vehicle to identify the most significant vehicle operating parameter responsible for excessive real-world emission levels. Based upon tailpipe-out emission levels two distinct portions in the engine maps could be identified; a clean portion of the map, which covers the engine operating points within the European the legislative drive cycle, and an unclean portion of the map that is outside the legislative testing. A systematic investigation of the tailpipe-out emission levels for the real-world drive cycle showed that the levels of vehicle speed and acceleration are immaterial if the vehicle operating points remain within the cleaner zone of the engine map. The methodical approach followed to identify the most significant vehicle operating parameter responsible for the real-world emission levels is given in this paper.
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Samuel, S., Morrey, D., Fowkes, M., Taylor, D. et al., "The Most Significant Vehicle Operating Parameter for Real-World Emission Levels," SAE Technical Paper 2004-01-0636, 2004, https://doi.org/10.4271/2004-01-0636.Also In
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