...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transportation Research >How does on-road fuel economy vary with vehicle cumulative mileage and daily use?
【24h】

How does on-road fuel economy vary with vehicle cumulative mileage and daily use?

机译：道路燃油经济性如何随着车辆的累积里程和日常使用而变化？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Understanding the fuel economy of vehicles in actual use has important implications for fuel economy, greenhouse gas emission and consumer information policies. This study explores how fuel economy varies with intensity of daily vehicle use, cumulative mileage, and ambient temperature. Using a unique longitudinal database, we quantify variations in fuel economy (miles per gallon or MPG). over time for the same vehicle. The database consists of more than 600,000 odometer and fuel purchase records, obtained from the "My MPG" section of the http://fueleconomy.gov website. Over 10,000 drivers reported their fuel purchases and vehicle usage, with an average of 36 fill-ups per vehicle. Multilevel models are used to analyze and compare relationships for conventional gasoline and hybrid vehicles. For gasoline vehicles, within-vehicle variation accounts for 23% total variation of fuel economy and 77% is between-vehicle variation. For hybrids, the equivalent proportions are 19% and 81%. On-road fuel economy increases nonlinearly with cumulative mileage, with nearly all of the increase occurring within the first few thousand miles. The estimated trend for hybrid vehicles is very different from that of conventional gasoline vehicles. Hybrids were found to have higher daily miles of use than conventional gasoline vehicles. Cold temperatures appear to have a greater effect on the fuel economy of hybrids than conventional gasoline vehicles. (C) 2017 Published by Elsevier Ltd.
机译：了解实际使用中的车辆的燃油经济性对燃油经济性，温室气体排放和消费者信息政策具有重要意义。这项研究探讨了燃油经济性如何随日常车辆使用强度，累积里程和环境温度而变化。使用独特的纵向数据库，我们可以量化燃油经济性的变化（英里/加仑或MPG）。随着时间的流逝，同一辆车。该数据库包含600,000里程表和燃油购买记录，这些记录是从http://fueleconomy.gov网站的“我的MPG”部分获得的。超过10,000名驾驶员报告了他们的燃油购买和车辆使用情况，平均每辆车加油36次。多级模型用于分析和比较常规汽油和混合动力车辆的关系。对于汽油车，车内差异占总燃油经济性差异的23％，而车内差异占77％。对于混合动力车，当量比例为19％和81％。道路燃料经济性随着累积里程的增加而非线性增加，几乎所有增加都发生在最初的数千英里之内。混合动力汽车的估计趋势与传统汽油汽车大不相同。研究发现，混合动力汽车的日常使用里程要高于传统汽油汽车。与常规汽油车相比，低温似乎对混合动力车的燃油经济性影响更大。 （C）2017由Elsevier Ltd.发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号