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In-use vs. type-approval fuel consumption of current passenger cars in Europe

机译:欧洲当前乘用车的使用中和类型认可的油耗

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摘要

In-use fuel consumption data of 924 passenger cars (611 petrol, 313 diesel) were collected from various European sources and were evaluated in comparison to their corresponding type-approval values. The analysis indicated that the average in-use fuel consumption was higher than the type-approval one by 11% for petrol cars and 16% for diesel cars. Comparison of this dataset with the Travelcard database in the Netherlands showed that the deviation increased for late model years and in particular for cars with low type-approval values. The deviation was higher than 60% for vehicles registered in 2012 within the 90-100 gCO_2/km bin. Unrealistic vehicle resistances used in type-approval were identified as one of the prime reasons of the difference. A simplified linear model developed in the study may be used to predict in-use fuel consumption based on data publicly available. The model utilizes the fuel consumption measured in type-approval, the mass, and the engine capacity to provide in-use fuel consumption. This may be either used to correct fuel consumption factors currently utilized by emission models (e.g. COPERT, HBEFA, VERSIT+, and others) or could be used independently to make projections on how fuel consumption may develop on the basis of changing future passenger cars characteristics.
机译:从欧洲各个地方收集了924辆乘用车(611汽油,313柴油)的使用中油耗数据,并与相应的类型批准值进行了比较。分析表明,汽油车和柴油车的平均在用燃油消耗量比类型批准者高11%。将该数据集与荷兰的Travelcard数据库进行比较,结果表明,在模型后期,尤其是对于具有较低类型认可值的汽车,偏差会增加。对于2012年注册的90-100 gCO_2 / km箱内的车辆,偏差高于60%。类型批准中使用的不切实际的车辆阻力被认为是造成这种差异的主要原因之一。研究中开发的简化线性模型可用于基于可公开获得的数据来预测使用中的油耗。该模型利用了按型式认可的燃油消耗,质量和发动机容量来提供使用中的燃油消耗。这可以用于校正排放模型(例如COPERT,HBEFA,VERSIT +等)当前使用的燃油消耗因数,也可以独立使用以根据未来乘用车特性的变化来预测燃油消耗的增长方式。

著录项

  • 来源
    《Energy Policy》 |2014年第4期|403-411|共9页
  • 作者单位

    Laboratory of Applied Thermodynamics, Aristotle University of Thessaloniki, PO Box 458, GR 54124 Thessaloniki, Greece;

    Emisia SA, Antoni Tritsi 21, GR 57001 Thessaloniki, Greece;

    Laboratory of Applied Thermodynamics, Aristotle University of Thessaloniki, PO Box 458, GR 54124 Thessaloniki, Greece;

    INFRAS, Binzstrasse 23, PO Box 8045, Zurich, Switzerland;

    Graz University of Technology, Rechbauerst, 12, 8010 Graz, Austria;

    TNO, STL Group, PO Box 49, 2600 AA Delft, The Netherlands;

    European Commission-JRC, Via Enrico Fermi 2749,I-21027, Ispra (VA), Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Greenhouse gases; Fuel economy; Road transport;

    机译:温室气体;燃油经济性;公路运输;

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