The impact of stepped fuel economy targets on automaker's light-weighting strategy: The China case
The impact of stepped fuel economy targets on automaker's light-weighting strategy: The China case
复制标题
阶梯式燃油经济性目标对汽车制造商轻量化战略的影响：中国案例
DOI：
10.1016/j.energy.2015.11.051
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发表时间：
2016
期刊：
影响因子：
9
通讯作者：
Zhao Fuquan
中科院分区：
文献类型：
--
作者：
Hao Han;Wang Sinan;Liu Zongwei;Zhao Fuquan
在我国乘用车燃料消耗率法规中，基于整车整备质量的燃料消耗率目标是以阶梯式的方式规定的，这对汽车制造商的轻量化战略有着重要的影响。在这项研究中，这种影响是定量评估的基础上，中国国内汽车市场的数据。本文从成本效益的角度，首先证明了在阶梯式的燃料消耗率目标下，汽车制造商有很强的动机来操纵整备质量，以获得更有利的目标。然后对2010-2014年中国国产车型进行了检验。一个显着不平衡的整备质量分布观察到，与相当数量的车辆模型聚在每个重量类的目标优选端。通过建立多个准则，识别出最有可能被整备质量操纵的车型，约占所有车型的10%。假设从阶梯目标转变为平滑目标，这些受影响的车型将平均减少17.92 kg的质量和0.073 L/100 km的燃油消耗率。我们的分析表明，阶梯式目标阻碍了汽车制造商应用轻量化技术。中国应该考虑在下一阶段的监管中从阶梯式目标转向平滑目标。
In China's fuel consumption rate regulation for passenger vehicles, the vehicle curb weight-based fuel consumption rate targets are specified in a stepped pattern, which is supposed to have considerable impact on automaker's light-weighting strategy. In this study, this impact is quantitatively evaluated based on China's domestic automotive market data. From the cost-effectiveness perspective, this paper firstly demonstrate that under stepped fuel consumption rate targets, automakers have strong incentives to manipulate curb weights to get qualified for more favorable targets. Then China's 2010–2014 domestic vehicle models are examined. A significantly imbalanced curb weight distribution is observed, with a considerable number of vehicle models bunching on the targets-preferred end of each weight class. By establishing multiple criteria, the vehicle models which are mostly likely to have been manipulated with curb weights are identified, which account for around 10% of all vehicle models. With an assumed shift from stepped targets to smooth targets, these affected vehicle models would have an average of 17.92 kg mass reduction and 0.073 L/100 km fuel consumption rate improvement. Our analysis suggests that the stepped targets have thwarted automakers from applying light-weighting technologies. China should consider shifting from stepped targets to smooth targets in the next phase of regulation.
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DOI：
10.4271/2006-01-0665
发表时间：
2006-04
期刊：
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发表时间：
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期刊：
GeographyRN: Transportation Geography (Sub-Topic)
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