基于功基窗口法的国六重型柴油车实际道路排放研究

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Abstract Six typical China-VI heavy-duty diesel vehicles were selected for the real driving emission test with Portable Emission Measurement System (PEMS), and the CO, NO_x, and PN emission characteristics of heavy-duty vehicles were evaluated by the work-based window method. The results showed that the emission aftertreatment devices of heavy-duty diesel vehicles could effectively control the CO and PN emissions under real driving conditions, but there was significant uncertainty in NO_x emission. Up to 46.68% of the high specific NO_x emission windows were removed from the real driving emission evaluation by the work-based window method adopted in the current China-VI emission regulation, which led to serious underestimation of real NO_x emissions from heavy-duty vehicles under real driving conditions, especially in urban traffic congestion. In the subsequent revision of the emission regulations, a more scientific and reasonable evaluation method should be introduced to evaluate the real driving emissions of heavy-duty vehicles.

Key words： heavy-duty diesel vehicle real driving emission China-VI emission regulation work-based window method

Received: 11 December 2020

PACS:	X51
	TK427

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	Articles by authors
	LYU Li-qun
	YIN Hang
	WANG Jun-fang
	YU Quan-shun
	GE Yun-shan
	WANG Xin

Cite this article:

LYU Li-qun,YIN Hang,WANG Jun-fang等. Research on real driving emissions from China-VI heavy-duty diesel vehicles based on work-based window method[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(8): 3539-3545.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I8/3539

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