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汽车安全与节能学报

汽车安全与节能学报 ›› 2014, Vol. 5 ›› Issue (02): 172-179.DOI: 10.3969/j.issn.1674-8484.2014.02.009

• 汽车节能与环保 • 上一篇    下一篇

辛烷值对现代汽油车油耗与排放影响的整车试验

帅石金，李昕晏，王银辉，付海超   

  1. 清华大学 汽车安全与节能国家重点实验室, 北京 100084，中国
  • 收稿日期:2013-11-22 出版日期:2014-06-25 发布日期:2014-06-27
  • 作者简介:第一作者/ First author ： 帅石金（1965—），男（汉），江西，教授。E-mail: sjshuai@tsinghua.edu.cn 第二作者/ Second author ： 李昕晏（1989—），男（汉），吉林，硕士研究生。E-mail: lxy08vip@163.com

Vehicle experiments on effects of octane number on fuel efficiency and emissions of modern gasoline vehicles

SHUAI Shijin, LI Xinyan, WANG Yinhui, FU Haichao   

  1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Received:2013-11-22 Online:2014-06-25 Published:2014-06-27

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摘要： 辛烷值对维持汽油机的理想运转起到重要作用。该文用整车转鼓试验，研究了辛烷值对现
代汽油车燃油经济性及排放的影响。5 辆试验汽车分别采用缸内直喷（gasoline direct injection，
GDI）与进气道喷射（port fuel injection, PFI）2 种发动机和涡轮增压与自然吸气2 种技术，采用研
究法辛烷值（RON）为 91.9~98.4 的6 种汽油，在新欧洲驾驶循环(NEDC) 条件下进行试验。结果表明：
采用先进技术的汽车，使用高辛烷值汽油时，节油效果明显：RON 每提升1 个单位，车辆燃油经济性
可提升约1% ； 辛烷值较高（RON 为97）时的汽车获得节油效果约为辛烷值较低（RON 为93）时的2 倍。
提高辛烷值，可不同程度改善排放。

关键词: 汽油车, 研究法辛烷值(RON), 整车试验, 燃油效率, 排放

Abstract: Octane number plays an important role in enabling optimal operation of gasoline engines. Vehicle
chassis dynamometer tests were conducted to investigate the impact of octane number on fuel economy and
the emissions of modern gasoline vehicles. The experiment conditions followed to the New European Drive
Cycle (NEDC). Five vehicles chose were equipped with Gasoline Direct Injection (GDI) or Port Fuel Injection (PFI),
using turbocharging technology or naturally aspirated technology. Six kinds of gasoline were fueled with the
RON (Research Octane Number) from 91.9 to 98.4. The results show that vehicles improve the fuel economy
of 1% with each 1.0 of RON increasing. Vehicles calibrated with higher octane (RON 97) achieve 2 times of
energy saving compared to vehicles with lower octane (RON 93). Using higher octane fuels makes vehicles with
advanced technologies achieve significant energy savings.

Key words: gasoline passenger cars, research octane number (RON), vehicle experiment, fuel efficiency, emissions

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