The invention relates to a method for constructing a vehicle lane changing model under different weather conditions, and the method comprises the steps: S1, building an expressway lane changing behavior weather influence division model, obtaining different severe weather levels, and representing the different severe weather levels by alpha; s2, in combination with different severe weather levels, improving a lane changing intention model of disfullness accumulation; based on a non-cooperative dynamic game framework, two lane changing decision modes of information symmetry and information asymmetry are constructed; s3, solving the two lane changing decision modes in the S2 by utilizing a sub-game perfect equilibrium and sequential equilibrium solving algorithm, and analyzing to obtain an optimal lane changing strategy; and S4, designing traffic flow simulation experiments under different severe weather grade conditions by using SUMO simulation software and PYTHON secondary development control software. Compared with the prior art, the method has the advantages that the interaction process of the vehicle is better embodied, the dynamic nature and uncertainty of interaction are more fully considered through analysis of multiple game rounds, a more accurate lane changing decision is made, and a vehicle balance optimization strategy in an SW interaction conflict scene is realized.
本发明涉及一种不同天气条件下车辆换道模型构建方法,包括步骤:S1:建立高速公路换道行为天气影响分量化模型,得到不同恶劣天气等级并以α表示;S2:结合不同恶劣天气等级,改进不满度累积的换道意图模型;并基于非合作动态博弈框架,构建信息对称和信息不对称两种换道决策方式;S3:对S2中两种换道决策方式利用子博弈完美均衡和序贯均衡求解算法进行求解,分析得出最优的换道策略;S4:利用SUMO仿真软件与PYTHON二次开发控制软件,设计不同恶劣天气等级条件下的车流仿真实验。更好的体现车辆的交互过程,通过对多个博弈回合的分析,对交互的动态性和不确定性考虑得更加充分,做出更加准确的换道决策,实现了在SW交互冲突场景下车辆的均衡优化策略。
Vehicle lane changing model construction method under different weather conditions
一种不同天气条件下车辆换道模型构建方法
2024-04-05
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen |
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