摘要
由于国6排放法规目前无法有效排除RDE试验过程中驾驶行为对试验结果的影响,因而造成不同驾驶行为下RDE试验结果差异较大。为提高试验结果的客观性和可重复性,提出通过对窗口v·a pos[95]进行归一化而引入窗口动力学因子这一概念,并据此对RDE试验结果进行驾驶行为的修正。对2辆满足国6排放标准的轻型汽油车进行RDE驾驶行为对比试验,结果表明:修正后不同驾驶行为下RDE测试结果的差异显著减小。正常驾驶和激烈驾驶行为下CO排放相对差异从64.01%~220.97%降至17.26%~19.90%;PN排放相对差异从69.46%~262.32%降至1.88%~10.43%;NO x排放相对差异从18.46%~46.21%降至10.82%~19.68%。
Since the China-VI emission regulation currently cannot effectively rule out the impact of driving behaviors on the results of real driving emission(RDE)test,different driving behaviors lead to significant discrepancies in RDE test results.In order to enhance the objectivity and repeatability of test results,a concept of window dynamics factor is introduced by normalizing v·a pos[95]window,based on which the correction for driving behavior is conducted on the results of RDE test.An RDE test for driving behavior comparison is carried out on two light gasoline vehicles,meeting the China-VI emission standard.The results show that after correction,the discrepancies of RDE test results in terms of emission factor between normal driving and aggressive driving significantly reduce.The relative discrepancies reduce from 64.01%~20.7%to 17.26%~19.90%for CO,those reduce from 69.46%~262.32%to 1.88%~10.43%for PN,while those reduce from 18.46%~46.21%to 10.82%~19.68%for NO x.
作者
张远军
董红磊
李岳兵
任毅
史育海
Zhang Yuanjun;Dong Honglei;Li Yuebing;Ren Yi;Shi Yuhai(Xiang Yang DA’AN Automobile Testing Center Limited,Xiangyang 441004;China National Institute of Standardization,Beijing 100191)
出处
《汽车工程》
EI
CSCD
北大核心
2020年第10期1354-1363,共10页
Automotive Engineering
基金
中央基本科研业务费项目(282019Y-6696)资助。
