Title: Carbon monoxide emission prediction from recorded engine data

Authors: M. Ergeneman

Addresses: Istanbul Technical University, Faculty of Mechanical Engineering, Automotive Department, 80191 Gumussuyu, Istanbul, Turkey

Abstract: A great deal of work has been done in recent years to measure or to predict the real-time emissions from motor vehicles. This is necessary not only to control and to reduce the emissions but also to calculate the real emission load resulting from motor vehicles. Global measurements made on representative driving cycles or calculations made with global emission factors do not reflect the real emission characteristics of vehicles on the road. In this paper, a theoretical approach is demonstrated for the calculation of the CO emissions of a vehicle powered by a gasoline engine. The calculation model is based on the air excess ratio (X) records of the engine while following a driving cycle. Other engine parameters, such as engine speed, ignition time advance, throttle valve position, intake air and coolant temperatures, fuel and airflow rates, are also recorded to feed the thermodynamic cycle and CO emission calculation models. The calculated and the measured total CO emissions at the end of the driving cycle arc approximately at the same level, although instantaneous emissions are not coincident quantitatively well on the time axis.

Keywords: carbon monoxide; carbon emissions; driving cycles; exhaust emissions; fuel consumption; lambda; vehicle emissions; air pollution; emissions modelling.

DOI: 10.1504/IJVD.1997.062063

International Journal of Vehicle Design, 1997 Vol.18 No.3/4, pp.400 - 410

Published online: 29 May 2014 *

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