Analysis of Motor Vehicle Exhaust Emission Characteristics based on PEMS in Mountain Cities

Abstract

Taking a gasoline vehicle in Chongqing as the research object, PEMS testing technology was used to study the exhaust emission characteristics of motor vehicles during driving on roads in the central urban area of Chongqing. The focus was on analyzing the data situation and emission rates of different mountain scenes, and analyzing the carbon emission characteristics of road traffic in Chongqing. Through the analysis and comparison of data, it is shown that in terms of the carbon emissions characteristics of road traffic in Chongqing, through long-term measurement data analysis of comprehensive road conditions in the central urban area of Chongqing, it is found that compared with the general emissions of common small vehicles (100-150 kg/km), the comprehensive carbon emissions of road traffic in Chongqing are significantly higher. This also indicates to some extent that the carbon emissions of road conditions in mountainous cities are higher than those in plain cities.