| AYC系统基于多传感器数据融合的路面附着系数估计 |
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| 引用本文： | 宋健,杨财,李红志,李亮.AYC系统基于多传感器数据融合的路面附着系数估计[J].清华大学学报(自然科学版),2009(5). |
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| 作者姓名： | 宋健 杨财 李红志 李亮 |
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| 作者单位： | 清华大学汽车安全与节能国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(50575120) |
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| 摘 要： | 为提高车辆行驶安全性,研究适用于车辆稳定性控制系统的实时路面附着系数估计算法。利用多传感器数据融合综合车辆稳定性控制系统的各传感器数据,从中提取轮胎-路面附着系数得到充分利用的特征信息。根据路面附着系数充分利用时的侧向加速度估算路面附着系数。通过15自由度硬件在环仿真平台以及实车试验两种方式对算法进行验证。一定条件下的仿真结果表明算法的最大估算误差不超过0.04,车辆双移线实车试验的通过率从25%提高到100%。
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| 关 键 词： | 附着系数识别 多传感器数据融合 汽车动力学 算法 |
Road friction coefficient estimation based on multisensor data fusion for an AYC system |
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| SONG Jian,YANG Cai,LI Hongzhi,LI Liang.Road friction coefficient estimation based on multisensor data fusion for an AYC system[J].Journal of Tsinghua University(Science and Technology),2009(5). |
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| Authors: | SONG Jian YANG Cai LI Hongzhi LI Liang |
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| Institution: | State Key Laboratory of Automotive Safety and Energy;Tsinghua University;Beijing 100084;China |
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| Abstract: | A road friction coefficient estimation algorithm was developed for dynamic stability control systems to improve driving safety.Multisensor data from the vehicle dynamic stability control system was integrated using a multisensor data fusion algorithm.Feature information was extracted to predict the tire-road friction coefficient.The road friction coefficient was estimated from the lateral acceleration when the tire-road friction was maximized.The algorithm was verified by simulations on a 15 DOF hardware-in... |
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| Keywords: | road friction coefficient estimation multisensor data fusion vehicle dynamics algorithm |
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