| 面向汽车纵向安全辅助系统的路面附着系数估计方法 |
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| 引用本文： | 吴利军,王跃建,李克强.面向汽车纵向安全辅助系统的路面附着系数估计方法[J].汽车工程,2009,31(3). |
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| 作者姓名： | 吴利军 王跃建 李克强 |
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| 作者单位： | 1. 吉林大学,汽车动态模拟国家重点实验室,长春,130025;中国科学院电工研究所,北京,100190
2. 清华大学,汽车安全与节能国家重点实验室,北京,100084 |
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| 基金项目： | 汽车动态模拟国家重点实验室开放基金 |
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| 摘 要： | 文中通过仿真研究探索了一种基于车轮滑移率的路面附着系数识别方法.首先讨论了有效估计驱动轮滑移率和利用附着系数的途径,然后在此基础上,提出了基于贝叶斯原理的路面附着系数估计迭代算法,并利用车辆动力学软件veDYNA对该算法进行仿真分析.结果表明,在滑移率大于代表不同路面的最小滑移率阈值的工况下,该方法能够快速、准确地捕获路面特征,满足汽车纵向安全辅助系统调整安全策略的需要.
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| 关 键 词： | 路面附着系数 贝叶斯原理 汽车安全辅助系统 |
Estimation Method of Road Adhesion Coefficient for Vehicle Longitudinal Safety Assistant System |
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| Wu Lijun,Wang Yuejian,Li Keqiang.Estimation Method of Road Adhesion Coefficient for Vehicle Longitudinal Safety Assistant System[J].Automotive Engineering,2009,31(3). |
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| Authors: | Wu Lijun Wang Yuejian Li Keqiang |
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| Institution: | Wu Lijun1,2,Wang Yuejian3 & Li Keqiang31.Jilin University,State Key Laboratory of Automobile Dynamic Simulation,Changchun 130025,2.Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,3.Tsinghua University,State Key Laboratory of Automotive Safety , Energy,Beijing 100084 |
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| Abstract: | A method of identifying road adhesion coefficient based on wheel slip ratio is investigated in this paper.Firstly the approaches of estimating the wheel slip ratio and utilization adhesion coefficient of drive wheel are discussed.Then based on these,a Bayes' theorem-based iteration algorithm for estimating road adhesion coefficient is proposed,on which a simulation analysis is performed using vehicle dynamics software veDYNA.The results show that when the slip ratio of drive wheel is larger than the minimum... |
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| Keywords: | road adhesion coefficient Bayes' theorem vehicle safety assistant system |
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