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文章摘要
基于3-Bin MAW的柴油车实际运行工况与NOx排放特征研究
Research on Actual Running Conditions and NOx Emission Characteristics of Diesel Vehicles Based on 3 Bin MAW
  
DOI:
中文关键词: Nox 排放  柴油车  3-Bin移动平均窗口  远程监控  运行工况
英文关键词: NOxemission  Diesel vehicle  3 Bin MAW  Remote monitoring  Runing conditions
基金项目:国家重点研发计划基金资助项目(2022YFC3703600)
作者单位
白晓鑫 中汽研汽车检验中心(天津)有限公司 
李旭 中汽研汽车检验中心(天津)有限公司 
吴春玲 中汽研汽车检验中心(天津)有限公司天津大学机械工程学院 
刘卫林 中汽研汽车检验中心(天津)有限公司 
杨永真 中汽研汽车检验中心(天津)有限公司 
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中文摘要:
      基于远程监控数据和3-Bin MAW方法对国六标准在用柴油车的实际运行工况和NOx排放特征进行研究。结果表明:在实际行驶中,柴油车近半数时间处于低负荷工况,怠速和中高负荷工况的运行时长占比相近,在怠速Bin、低负荷Bin和中高负荷Bin时,柴油车的NOx排放贡献率分别为334%、495%和171%;在怠速Bin时,约862%的车辆NOx排放速率低于20 g/h的区间排放限值;在中高负荷Bin时,约992%的柴油车比排放低于092 g/(kW·h)的区间排放限值;在低负荷Bin时,仅约523%的车辆比排放能够低于054 g/(kW·h)的排放限值。
英文摘要:
      An study was conducted on actual running conditions and NOx emission characteristics of diesel vehicles that met national phase Ⅵ motor vehicle pollutant emission standards by using remote monitoring data and 3 Bin MAW method. The results showed that during actual driving, diesel vehicles were in low load conditions for nearly half of the time, and the proportions of running time in idling and medium high load conditions were similar. In idling Bin, low load Bin and medium high load Bin, the contribution rates of NOx emissions from diesel vehicles were 334%,495%,and 171%, respectively. In idling Bin, approximately 862% of the vehicles had NOx emissions lower than the prescribed emission limit of 20 g/h. In medium high load Bin,nearly 992% of the diesel vehicles had NOx emissions lower than the prescribed emission limit of 092 g/(kW·h). In low load Bin, only about 523% of the vehicles had emissions lower than the emission limit of 054 g/(kW·h).
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