Research on the real-world gaseous emission characteristics of a plug-in hybrid electric vehicle under different initial battery state-of-charge

Plug-in hybrid electric vehicles (PHEVs) have been greatly promoted due to their advantage in both vehicle performance and energy conversion efficiency. However, real-world emission measurements are rarely conducted for PHEV under different initial battery state-of-charge (SoC). In this study, a por...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-07, Vol.821 (1), p.12014
Main Authors: Yang, Zhiwen, Zhong, Chongzhi, Li, Jingyuan, Shen, Shu, Ling, Jian, Xie, Zhenkai, Qi, Songbo, Zhang, Xiaowen, Wang, Jiguang, Li, Mengliang, Mao, Hongjun
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon monoxide
Electric vehicles
Emission analysis
Emission measurements
Emissions control
Energy conversion
Energy conversion efficiency
Hybrid electric vehicles
Nitrogen oxides
Photochemicals
Rural roads
State of charge
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Summary:Plug-in hybrid electric vehicles (PHEVs) have been greatly promoted due to their advantage in both vehicle performance and energy conversion efficiency. However, real-world emission measurements are rarely conducted for PHEV under different initial battery state-of-charge (SoC). In this study, a portable emission measurement system (PEMS) was employed to investigate the real-world emissions of carbon monoxide (CO), nitrogen oxides (NO x ), and carbon dioxide (CO 2 ) from a Euro V PHEV under fully and uncharged initial battery SoC. Compared to the emissions under the uncharged state, the average emission factors (EFs) of CO, NO x , and CO 2 under the fully charged state are reduced by 72.2%, 27.8%, and 29.0%, respectively. And the reduction effect on the urban road is much more significantly prominent compared to that on the rural road and highway. In addition, obvious reduction effectiveness can be found for CO EFs in different average speed bins, especially those with speeds above 100 km/h. For NO x and CO 2 , however, the average speed-bin EFs are reduced only when the speed is below 70 km/h, while no obvious differences can be found when the speed is above 70 km/h. Furthermore, for the average vehicle specific power (VSP)-bin emission rates, obvious reduction effectiveness is observed for CO in different speed ranges, and for NO x and CO 2 in the low- and medium-speed ranges except the high-speed range.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/821/1/012014