论文部分内容阅读
为了反映轻型车排放随发动机输出功率的变化关系,搭建轻型车车载排放测试试验平台,通过实际道路试验获取质量排放数据与对应的行驶状态数据;为了便于与交通仿真模型融合,将比功率分成10区,分析了3种污染物质量排放率随比功率分区的变化关系,并计算得到了10个分区内3种排放污染物的质量排放率。结论表明,轻型车3种污染物质量排放率与比功率具有很高的相关性;bin1～bin3对应着轻型车制动减速的情况,排放速率最慢;bin6～bin10对应着轻型车车速高以及急加速度情形,排放速率最高;研究得到的不同比功率分区下的质量排放率可以作为与交通仿真模型结合来量化区域排放的依据。
In order to reflect the relationship between light vehicle emissions and engine output power changes, a light vehicle on-board emission test platform was set up to obtain quality emission data and corresponding driving status data through actual road tests. In order to facilitate the integration with traffic simulation models, the specific power was divided into 10 Area, the relationship between the mass emission rate of three pollutants and the specific power area was analyzed, and the mass emission rate of three kinds of pollutants discharged from 10 sub-areas was calculated. The conclusion shows that there are high correlations between the mass emission rate and specific power of three pollutants in light-duty vehicles. Bin1 ~ bin3 correspond to the deceleration of light-duty vehicles with the slowest discharge rate; bin6 ~ bin10 corresponds to the light-vehicle speed and In the case of acute acceleration, the emission rate is the highest. The mass emission rate under different specific power zones studied can be used as a basis for quantifying regional emissions combined with traffic simulation models.