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轻型车RDE窗口法在中国实际道路的适应性研究

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轻型车RDE窗口法在中国实际道路的适应性研究
The Adaptability of the RDE Window Method for Actual China Road
投稿时间:2019-02-25
DOI:10.15918/j.tbit1001-0645.2019.054
中文关键词:实际行驶排放排放缺陷行驶特征窗口正常性
English Keywords:real driving emissions (RDE)emission defectdriving characteristicswindow normality verification
基金项目:中央基本科研业务费基金资助项目(282019Y-6696)
作者单位E-mail
葛蕴珊北京理工大学 机械与车辆学院, 北京 100081
王亚超北京理工大学 机械与车辆学院, 北京 100081
董红磊国家市场监管总局缺陷产品管理中心, 北京 100101donghl@dpac.gov.cn.
宋彬北京理工大学 机械与车辆学院, 北京 100081
尹航中国环境科学研究院, 北京 100012
李泽林国家市场监管总局缺陷产品管理中心, 北京 100101
杨正军北京理工大学 机械与车辆学院, 北京 100081
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中文摘要:
利用PEMS装置开展RDE排放测试,不需要在专业实验室就可以进行排放标准符合性判定,更能真实反映车辆实际使用时的排放水平,为汽车排放缺陷判定提供了一种高效方法.本论文选择典型车辆按标准要求进行多次RDE实验,研究车辆行驶特性与CO2窗口正常性之间的关系,发现车辆在实际道路上的CO2排放与车辆加速度分布高度相关.在RDE测试过程中,如果市区、市郊和高速阶段加速度分布规律分别与WLTC循环的低速、高速和超高速加速度分布规律一致时,则CO2窗口正常性较高.因此,为进一步提高国Ⅵ标准对实际道路行驶车辆排放特性的考核效率,建议将当前国Ⅵ标准中RDE法规P1P2P3参考点的系数降低.
English Summary:
The portable emission measurement system (PEMS) devices for real driving emissions (RDE) test can eliminate the compliance of emission standards in a special laboratory which can more accurately reflect the emission level of the vehicle in real driving, providing an efficient method for determining vehicle emission defects. In this study, a gasoline vehicle was tested many times using PEMS in accordance with the RDE test procedure to analyze the relationship between the vehicle driving features and CO2 window normality. Results show that, the CO2 result is correlated with the speed and acceleration distribution of the vehicle in real driving. In the RDE test, it is found that when the acceleration distribution is consistent separately with WLTC low, high and superhigh acceleration distribution, the RDE can easily to pass the normality verification. And then, a one-to-one correspondence was produced about the driving features between RDE and WLTP Test, including urban to low speed interval, rural to high speed interval and motorway to extra-high speed interval. Finally, the coefficients of reference points P1P2P3 were established to make the legislation more suitable for China's real driving.
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