Characterising emissions from private passenger vehicles using engine operating patterns
by Philip H. Goyns, Enver Doruk Ozdemir
International Journal of Environmental Engineering (IJEE), Vol. 3, No. 1, 2011

Abstract: A method to simulate emissions factors using frequency distribution plots of engine speed and engine load is proposed. The distribution plots and corresponding emissions factors were developed from speed time series' of real-world driving cycles and physical properties of a range of private passenger vehicles tested at the EMPA. Emissions factors were estimated for a set of simultaneously measured frequency distribution plots and driving cycles using the proposed method and a method developed by De Haan and Keller (2004b) respectively. CO₂ was between 16% and 68% higher for the proposed method however there was no significant difference for other emissions.

Online publication date: Sat, 25-Apr-2015

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