Abstract

Rural vehicles (RVs) contribute a large proportion to total air pollutant emissions in China. In order to develop and evaluate the RV emission control legislation and policy, accurate emission factors and emission inventories for RVs need to be investigated. In this paper, based on the tri-wheel rural vehicle (3-W RV) emission data measured using portable emission measurement system (PEMS) on real roads, an instantaneous emission model was developed and used to estimate the hot stabilized 3-W RV emissions and fuel consumption under real driving conditions. The modeling approach of the instantaneous emission model was presented, and the instantaneous emission model was validated using the experimental results. The predicted emissions and fuel consumption of Foton Lovol 3-W RV met well with the measured results over the selected driving trip, and the prediction errors were in the range of 3-9%.

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