The invention discloses a background traffic flow model construction method considering a vehicle following behavior and an application, and the method comprises the steps: analyzing the stress of a vehicle in a following scene, and the stress comprises a self-driving force, a repulsive force, a lane force and a transverse random force; the repulsive force generated according to the different positions of the surrounding vehicles relative to the test vehicle comprises the interaction force of the front vehicle, the expelling force of the rear vehicle and the lateral force of the lateral vehicle; the self-driving force, the repulsive force, the lane force and the transverse random force are subjected to transverse and longitudinal stress disassembly, and a two-dimensional car-following model of the tested vehicle is constructed; and respectively performing parameter fitting on the transverse stress and the longitudinal stress by using driving data in the car-following scene, determining undetermined parameter values in the two-dimensional car-following model, and constructing a traffic flow scene by using the two-dimensional car-following model. According to the method, interaction force between vehicles is fully considered, and background vehicle behaviors are dynamically generated; the diversity and authenticity of the background traffic flow are improved, and more comprehensive support can be provided for testing and verification of the automatic driving technology.
本发明公开了一种考虑车辆跟驰行为的背景交通流模型构建方法及应用,分析跟驰场景中车辆的受力,受力包括自驱力、排斥力、车道力以及横向随机力;根据周边车辆相对测试车辆的位置不同产生的排斥力包括前车的相互作用力、后车的驱逐力、侧向车辆的侧向力;将自驱力、排斥力、车道力以及横向随机力进行横向和纵向的受力拆解,构建测试车辆的二维跟驰模型;利用跟驰场景中行驶数据分别对横向受力和纵向受力分别进行参数拟合,确定二维跟驰模型中的待定参数取值,利用二维跟驰模型构建交通流场景。本方法充分考虑车辆间的相互作用力,动态生成背景车辆行为;不仅提升背景交通流的多样性和真实性,还能为自动驾驶技术的测试和验证提供更加全面的支持。
Background traffic flow model construction method considering vehicle following behavior and application
一种考虑车辆跟驰行为的背景交通流模型构建方法及应用
2025-05-30
Patent
Electronic Resource
Chinese
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