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首页> 外文期刊>Journal of Earth Sciences and Geotechnical Engineering >Variations of Real World NOx Emissions of Diesel Euro 5 and 6 Light-duty Vehicles
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Variations of Real World NOx Emissions of Diesel Euro 5 and 6 Light-duty Vehicles

机译：欧5和欧6轻型柴油车现实世界中NOx排放量的变化

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In order to gain insight into trends in real-world emissions of light-duty diesel vehicles under conditions relevant for the Dutch and European situations, eighteen Euro 6 passenger cars and ten Euro 5 light commercial vehicles (LCV’s) were extensively tested in the laboratory and on the road. These measurements also form a basis for the annual update of Dutch emission factors. The majority of the vehicles comply in type approval emission tests but on the road real-world NOx emissions are on average 5 to 6 times higher than the type approval limit value. Euro 6 passenger cars emit in the range of 50-2000 mg/km. The average NOx emissions of the N1 class III Euro 5 commercial vehicles range from 1421 to 1670 mg/km. In general the difference between real-world emissions and type approval emissions has been growing over the years. Improvement of real world NOx emissions of future diesel vehicles is possible with Real Driving Emission legislation. Currently the relative expensive PEMS is foreseen as the type approval standard for on-road testing. TNO applies also a NOx-O2 sensor based system with data logger (SEMS) as a NOx screening tool. In the RDE legislation it is prescribed to normalize the measured data of RDE test trips. The current normalization tools (EMROAD and CLEAR) show a variation in the results.
机译：为了深入了解荷兰和欧洲情况下的轻型柴油车实际排放趋势，在实验室中对18辆欧6乘用车和10辆欧5轻型商用车（LCV）进行了广泛测试。在路上。这些测量结果也是荷兰排放因子年度更新的基础。大多数车辆都通过了型式认可排放测试，但在道路上实际的NOx排放量平均比型式认可极限值高5至6倍。欧6乘用车的排放范围为50-2000 mg / km。 N1 III级欧元5型商用车的平均NOx排放量介于1421至1670 mg / km之间。总体而言，多年来，实际排放量与类型批准排放量之间的差异一直在增长。借助“真实驾驶排放”法规，可以改善未来柴油车辆的现实世界NOx排放。当前，预计相对昂贵的PEMS将成为道路测试的类型批准标准。 TNO还将基于NOx-O2传感器的系统与数据记录器（SEMS）用作NOx筛选工具。在RDE立法中，规定对RDE测试行程的测量数据进行标准化。当前的标准化工具（EMROAD和CLEAR）显示结果的变化。

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