一种基于历史时序特征的分车型跟驰行为决策方法

By using a vehicle-type-based car-following behavior decision-making method based on historical time-series features and employing the SE-TCL neural network to predict the acceleration and speed of following vehicles, the shortcomings of existing models in simulating driving behavior of different vehicle combinations are addressed, thereby improving the intelligence level of autonomous vehicles.

CN115186583BActive Publication Date: 2026-07-17HEFEI UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Filing Date
2022-07-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing car-following models struggle to accurately simulate driving behavior across different vehicle combinations, especially in mixed traffic flows. They fail to adopt appropriate car-following behaviors based on the type of vehicle ahead, resulting in insufficient intelligence levels in autonomous vehicles.

Method used

A vehicle-type following behavior decision-making method based on historical time-series features is adopted. By acquiring vehicle trajectory data, smoothing it using the symmetric exponential moving average method, and constructing an SE-TCL neural network model, a time attention module, a time-series convolution module, and a time-series learning module are combined to predict the acceleration and speed of the following vehicle.

Benefits of technology

It improves the accuracy and precision of predicting following behavior for different vehicle combinations, and can select appropriate driving behaviors based on the types of vehicles in front and behind, thus enhancing the intelligence level of autonomous vehicles.

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Abstract

本发明公开了一种基于历史时序特征的分车型跟驰行为决策方法,包括:1提取未发生换道行为的车辆轨迹数据;2对提取的轨迹数据进行平滑处理;3筛选不同车型组合的跟驰车辆,得到相关跟驰数据;4构建具有历史时序特征的模型输入、输出矩阵,对不同车型组合进行One‑hot编码加入模型输入;5基于LSTM神经网络,提出SE‑TCL网络模型架构,训练网络,调整参数,得到最优网络模型;6分车型预测后车跟驰加速度、速度与位移。本发明考虑跟驰数据中的历史时序特征,且能够根据车型选择不同驾驶行为,仿真得到的速度和位移更接近后车驾驶人真实的驾驶行为,能够更好地模拟不同车型组合的微观交通行为,提高自动驾驶车辆的智能化水平。
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