气候变化领域集成服务门户(CCPortal): Gap between on-road and official fuel efficiency of passenger vehicles in China

CCPortal

DOI	10.1016/j.enpol.2021.112236
	Gap between on-road and official fuel efficiency of passenger vehicles in China
	Yu R.; Ren H.; Liu Y.; Yu B.
发表日期	2021
ISSN	03014215
卷号	152
英文摘要	The gap between on-road fuel efficiency and official fuel efficiency of passenger vehicles reported by manufacturers is widening, which would lead to the underestimate of real fuel consumption and biased projection of energy demand in the road transport sector. To investigate the gap between official and on-road fuel efficiency of passenger vehicles, we first built a comprehensive dataset of 393,108 valid observations, including vehicle system parameters, fuel-efficient technology, etc. Then we developed two regression models to quantify the driving factors of the increasing gap and slow improvement in on-road fuel efficiency, and the contribution of each factor to the gap. Results show that the fuel efficiency gap enlarged from 14.4% in 2010 to 25.1% in 2016, and the average on-road fuel efficiency did not have substantial improvement though the official fuel efficiency did. The fuel-efficient technologies have the greatest effect on both the fuel efficiency gap and on-road fuel efficiency among the factors considered in this study. Among the fuel-efficient technologies, hybrid electric vehicle would decrease the ratio of on-road to official fuel efficiency by 12.4% and improve the on-road fuel efficiency by 44.1%. Impacts of other fuel-efficient technologies were also assessed. Further government effort on policies to encourage fuel-efficient technologies for improving real on-road fuel efficiency is needed. © 2021 Elsevier Ltd
关键词	China Driving factors Gap Official fuel efficiency On-road fuel efficiency Passenger vehicles
英文关键词	Automobile manufacture; Hybrid vehicles; Regression analysis; Roads and streets; China; Driving factors; Efficient technology; Energy demands; Fuel efficiency; Gap; Official fuel efficiency; On-road fuel efficiency; Passengers vehicles; Road fuels; Fuels; car use; demand analysis; efficiency measurement; electric vehicle; energy efficiency; fuel consumption; road transport; China
语种	英语
来源期刊	Energy Policy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205427
作者单位	Center for Energy and Environmental Policy Research, Beijing Institute of Technology, Beijing, 100081, China; School of Management and Economics, Beijing Institute of Technology, Beijing, 100081, China; China Automotive Technology and Research Center, Tianjin, 300300, China; Sustainable Development Research Institute for Economy and Society of Beijing, Beijing, 100081, China
推荐引用方式 GB/T 7714	Yu R.,Ren H.,Liu Y.,et al. Gap between on-road and official fuel efficiency of passenger vehicles in China[J],2021,152.
APA	Yu R.,Ren H.,Liu Y.,&Yu B..(2021).Gap between on-road and official fuel efficiency of passenger vehicles in China.Energy Policy,152.
MLA	Yu R.,et al."Gap between on-road and official fuel efficiency of passenger vehicles in China".Energy Policy 152(2021).