驾驶人换道决策分析及意图识别算法设计

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清华大学辅仁网/2017-07-07

驾驶人换道决策分析及意图识别算法设计

丁洁云¹, 党睿娜², 王建强¹, 李克强¹

1. 清华大学汽车安全与节能国家重点实验室, 北京 100084;
2. 中国北方车辆研究所, 北京 100072

Driver lane change decision analysis and intention recognition algorithm

DING Jieyun¹, DANG Ruina², WANG Jianqiang¹, LI Keqiang¹

1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China;
2. China North Vehicle Research Institute, Beijing 100072, China

摘要:

输出: BibTeX | EndNote (RIS)

摘要为设计一种能在保证准确率的条件下提高识别效率的驾驶人换道意图识别算法, 分析驾驶人的换道决策, 使用对驾驶人换道决策有影响的环境参数, 设计了基于模糊逻辑理论的综合决策因子, 反映驾驶人做出换道决策的可能性。提出一种基于隐Markov模型的换道意图识别算法, 以综合决策因子与表征车辆横向运动的特征参数为观测变量, 以驾驶人意图为隐状态, 搭建并训练隐Markov模型, 通过其解码方法实现驾驶人的换道意图识别。使用真实驾驶人在驾驶模拟器上进行换道的数据进行算法验证。结果表明:引入综合决策因子作为观测变量之一时, 该换道意图识别算法能保证准确性并提高识别效率。

关键词 ：驾驶人换道决策分析,换道综合决策因子,换道意图识别

Abstract：An accurate lane change intention recognition algorithm is developed to improve real-time performance. The algorithm analyzes the drivers' lane change decisions to develop a new symbol and a comprehensive decision index (CDI) based on fuzzy theory to assess the probability that the driver will change lanes. Then, the driver intention recognition algorithm is designed based on a hidden Markov model. Using the new symbol as well as representative lateral motion parameters as observed signals, and the driver's intention as the hidden state, a hidden Markov model is built and trained. The driver's intention is recognized by the HMM decoding method. Lane change data collected on a driving simulator are used to verify the overall algorithm performance. The results show that the algorithm with the CDI as one of the observation signals both guarantees the accuracy of the recognition results and improves the real-time performance.

Key words：driver lane change decision analysis lane-change comprehensive decision index lane change intention recognition

收稿日期: 2014-11-09 出版日期: 2015-09-18

ZTFLH:

U471.3

通讯作者:李克强,教授,E-mail:likq@tsinghua.edu.cnE-mail: likq@tsinghua.edu.cn

引用本文:

丁洁云, 党睿娜, 王建强, 李克强. 驾驶人换道决策分析及意图识别算法设计[J]. 清华大学学报（自然科学版）, 2015, 55(7): 769-774.
DING Jieyun, DANG Ruina, WANG Jianqiang, LI Keqiang. Driver lane change decision analysis and intention recognition algorithm. Journal of Tsinghua University(Science and Technology), 2015, 55(7): 769-774.

链接本文:

http://jst.tsinghuajournals.com/CN/或 http://jst.tsinghuajournals.com/CN/Y2015/V55/I7/769

图表:

图1　各换道工况下的变道次数

表1　决策与各参数间的相关系数

图2　CDI计算子模块设计框图

表2　CDI的模糊计算规则

图3　用于意图识别的HMM 结构

图4　驾驶模拟实验台

图5　换道意图识别结果

表3　不同输入参数对应的准确性及识别效率

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