| 轻型车RDE动力学参数特征与验证合理性研究 |
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| 引用本文： | 马志磊,何超,李加强,刘学渊.轻型车RDE动力学参数特征与验证合理性研究[J].车用发动机,2022(1):78-85. |
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| 作者姓名： | 马志磊 何超 李加强 刘学渊 |
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| 作者单位： | 西南林业大学机械与交通学院,云南昆明 650224;云南省高校高原山区机动车环保与安全重点实验室,云南昆明 650224,西南林业大学机械与交通学院,云南昆明 650224 |
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| 基金项目： | 国家自然科学基金(51968065)；;云南省重大科技项目(2018ZE001)； |
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| 摘 要： | 为研究RDE试验动力学参数的特征与不同海拔对窗口正常性验证的影响,按照轻型车国六排放标准的要求进行12次道路试验.结果 表明:v·apos_95]随着车速上升而升高,RPA随着车速上升而下降.按第95百分位取值得到的v·a pos_95]不能很好地反映各速度组v·apos值的总体变化规律,取值位置前移可改善这一问题...
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| 关 键 词： | 轻型车 实际行驶排放 动力学参数 海拔 窗口正常性验证 |
Characteristics of Dynamic Parameter and Validation Rationality of RDE Test for Light-Duty Vehicle |
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| MA Zhilei,HE Chao,LI Jiaqiang,LIU Xueyuan.Characteristics of Dynamic Parameter and Validation Rationality of RDE Test for Light-Duty Vehicle[J].Vehicle Engine,2022(1):78-85. |
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| Authors: | MA Zhilei HE Chao LI Jiaqiang LIU Xueyuan |
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| Institution: | (Southwest Forestry University,School of Mechanics and Transportation,Kunming 650224,China;Key Laboratory of Vehicle Environmental Protection and Safety in Plateau Mountain Area of Yunnan University,Kunming 650224,China) |
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| Abstract: | In order to study the characteristics of dynamic parameters and the influence of different altitudes on window normality verification,RDE test was carried out 12 times according to the ChinaⅥemission legislation of light-duty vehicle.The results show that v·apos_95]increases and RPA decreases with the increase of vehicle speed.v·apos_95]is acquired according to the 95th percentile,which cannot represent the overall law of v·aposfor each speed group.The percentile for value obtaining hence should move forward.WLTC cycle is more intense than RDE test according to dynamic parameters.Using 1.2 coefficient to calculate P1 point for normal verification of urban window will make the baseline so high as to decrease the pass rate of verification.In the verification of suburban and high-speed windows at high altitude,the coefficient used in calculating P2 and P3 points should decrease. |
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| Keywords: | light-duty vehicle real driving emission dynamic parameter altitude window normality verification |
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