环境温度与轻型车实际道路排放变化初探

A Preliminary Study on the Changes in Ambient Temperature and Actual Road Emissions of Light Vehicles

采用日本HORIBA OBS-ONE车载排放分析系统进行在不同环境温度下轻型车实际道路排放的试验。试验采用同一台国六排放标准轻型车,在同组试验人员、相同线路、不同环境温度条件下进行两组实际道路排放特性试验并对结果进行比对分析。试验揭示了环境温度与轻型车排放量的相关性,改变发动机中冷进气温度能大大改善排放的结果,有效遏制机动车排放的污染,且PEMS排放检测技术具备较强的实用性。

This paper uses the Japanese HORIBA OBS-ONE vehicle emission analysis system to conduct the actual road emission test of light-duty vehicles at different ambient temperatures.The test uses the same lightduty vehicle with National VI emission standards,and conducts two groups of actual road emission characteristics tests under the same group of testers,the same route,and different ambient temperature conditions,and the results are compared and analyzed.The test revealed the correlation between ambient temperature and light-duty vehicle emissions.Changing the temperature of the cold intake air in the engine can greatly improve the emission results,and effectively curb the pollution of motor vehicle emissions.The PEMS emission detection technology has strong practicability.