某柴油乘用车排放性能试验研究

Study on Emissions of a Diesel Passenger Vehicle

为了解国Ⅴ柴油乘用车使用国Ⅴ标准柴油的排放情况,对某柴油乘用车进行了瞬态气态物、颗粒物排放分析,以及160 000 km耐久排放试验研究。试验结果表明,瞬态排放试验中,除一氧化碳(CO)排放外,二氧化碳(CO_2)、总碳氢化合物(THC)、氮氧化物(NO_x)、颗粒物质量(PM,冷车)、颗粒物数量(PN,冷车)排放均与车辆工况有关联。耐久排放试验中,CO排放随里程出现升高趋势,其它排放物无明显升高趋势;且耐久排放试验中,所有污染物排放量均符合中国第五阶段排放法规要求。

An experimental study was carried out to investigate transient gaseous and particulate emissions and 160 000 km durability emissions on a type of diesel passenger vehicle with China V diesel to understand the capability of such kind vehicle to meet China V emissions regulation. The msuh indicates that apart from CO, C02, NOx, THC, PM （cold state） and PN （cold state） emissions are related to vehicle operation conditions. In din＇ability test, CO emission increases with vehicle mile, there is no obvious increase in other emissions, and all the pollution emissions are within the limits of China V emissions regulation.