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Fuel consumption rates of passenger cars in China: Labels versus real-world

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  • Huo, Hong
  • Yao, Zhiliang
  • He, Kebin
  • Yu, Xin

Abstract

Recently, China has implemented many policy measures to control the oil demand of on-road vehicles. In 2010, China started to report the fuel consumption rates of light-duty vehicles tested in laboratory and to require new vehicles to show the rates on window labels. In this study, we examined the differences between the test and real-world fuel consumption of Chinese passenger cars by using the data reported by real-world drivers on the internet voluntarily. The sales-weighted average fuel consumption of new cars in China in 2009 was 7.80L/100km in laboratory and 9.02L/100km in real-world, representing a difference of 15.5%. For the 153 individual car models examined, the real-world fuel consumption rates were −8 to 60% different from the test values. The simulation results of the International Vehicle Emission model show that the real-world driving cycles in 22 selected Chinese cities could result in −8 to 34% of changes in fuel consumption compared to the laboratory driving cycle. Further government effort on fuel consumption estimates adjustment, local driving cycle development, and real-world data accumulation through communication with the public is needed to improve the accuracy of the labeling policy.

Suggested Citation

  • Huo, Hong & Yao, Zhiliang & He, Kebin & Yu, Xin, 2011. "Fuel consumption rates of passenger cars in China: Labels versus real-world," Energy Policy, Elsevier, vol. 39(11), pages 7130-7135.
    • Handle: RePEc:eee:enepol:v:39:y:2011:i:11:p:7130-7135
    DOI: 10.1016/j.enpol.2011.08.031
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    References listed on IDEAS

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