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汽车安全与节能学报

JASE ›› 2016, Vol. 07 ›› Issue (01): 108-114.DOI: 10.3969/j.issn.1674-8484.2016.01.014

• 汽车节能与环保 • 上一篇    下一篇

基于OBD 系统的汽油车油耗实时在线监测方法

杨殿阁1，李 满1，班学钢2   

  1. 1. 清华大学 汽车安全与节能国家重点实验室 汽车工程系 智能型新能源汽车协同创新中心，北京100084，中国；
    2. 伦斯勒理工学院 土木与环境工程系，纽约州12180，美国
  • 收稿日期:2015-11-16 出版日期:2016-03-25 发布日期:2016-04-05
  • 作者简介:杨殿阁（1973—），男（汉），山东，教授。E-mail: ydg@mail.tsinghua.edu.cn
  • 基金资助:

    国家重点实验室开放基金（KF14142）

Real-time on-board monitoring method of gasoline vehicle fuel consumption based on OBD system

YANG Diange1, LI Man1, BAN Xuegang2   

  1. 1. State Key Laboratory of Automotive safety and Energy, Department of Automotive Engineering, Collaborative Innovation
    Center of Intelligent New Energy Vehicle, Tsinghua University, Beijing, 100084,China;
    2. Rensselaer Polytechnic Institute, Department of Civil and Environmental Engineering, Troy, New York, 12180, USA
  • Received:2015-11-16 Online:2016-03-25 Published:2016-04-05

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摘要：

建立了基于车辆在线故障诊断(OBD) 系统的实时油耗计算方法。对不同型号车辆的OBD 实
时信息进行了采集分析。针对车辆OBD 信息的差异性适配特征，根据汽油发动机空气燃料比(AFR)
原理，建立了4 种同源的汽油车实时油耗计算方法。针对部分OBD 信息适配度不高的车型，对油耗
计算中OBD系统缺失的车辆参数，提出了实验参数标定方法。对于此类汽油车油耗监测方法进行了
实车实验验证。结果表明：此类油耗监测方法可对绝大多数汽油车进行实时在线油耗监测，瞬时油耗
误差在±8%以内，其误差在±3%以内。

关键词: 汽油车, 在线故障诊断(OBD) , 实时在线监测, 油耗, 空气燃料比(AFR) , 参数标定

Abstract:

A method based on OBD system was established for real-time on-board monitoring of gasoline
vehicle fuel consumption. The different types of vehicles for on-board diagnostic (OBD) real-time parameters
was analyzed. Based on the adaption analysis results, according to the principle of air / fuel ratio (AFR) of
gasoline engine, 4 kinds of calculation methods with the same principle for gasoline vehicle real-time fuel
consumption were established. For a small portion of vehicles with low adaptation, the OBD system can’t obtain
the parameters to calculate the gasoline vehicle fuel consumption. For this type of vehicles the method of
parameter calibration was proposed. The vehicle experiments were carried out, in order to validate correctness
of this kind of methods. The result show that such fuel consumption monitoring method can be used for the
vast majority of gasoline vehicles for real-time on-board fuel consumption monitoring, the instantaneous fuel
consumption error is within ±8%, the instantaneous fuel consumption per 100 kilometers error within ±3%.

Key words: gasoline vehicles, on-board diagnostic (OBD), real-time on-board monitoring, fuel consumption, air fuel ratio (AFR), parameter calibration