• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (8): 151-162.doi: 10.3901/JME.2023.08.151

• 运载工程 • 上一篇    下一篇

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智能汽车显式沟通下的交互式行人穿行行为预测

王永胜1, 刘金鑫1, 卜德旭1, 江发潮2, 罗禹贡1   

  1. 1. 清华大学车辆与运载学院 北京 100084;
    2. 中国农业大学工学院 北京 100083
  • 收稿日期:2022-03-10 修回日期:2022-12-15 出版日期:2023-04-20 发布日期:2023-06-16
  • 通讯作者: 罗禹贡,男,1974年出生,博士,研究员,博士研究生导师。主要研究方向为智能网联电动车辆动力学及控制。E-mail:lyg@tsinghua.edu.cn
  • 作者简介:王永胜,男, 1991 年出生,博士,博士后。主要研究方向为智能网联电动车辆定位系统的预期功能安全、动力学及控制。E-mail: wang_ysh@tsinghua.cn
  • 基金资助:
    国家重点研发计划(2022YFE0101000); 北京市科技计划(Z21100004221005)资助项目

Interactive Pedestrian Crossing Behavior Prediction under the Explicit Communication of Intelligent Vehicles

WANG Yong-sheng1, LIU Jin-xin1, BU De-xu1, JIANG Fa-chao2, LUO Yu-gong1   

  1. 1. School of Vehicle and Mobility, Tsinghua University, Beijing 100084;
    2. College of Engineering, China Agricultural University, Beijing 100083
  • Received:2022-03-10 Revised:2022-12-15 Online:2023-04-20 Published:2023-06-16

摘要: 室内停车场是“行人-智能汽车”(Pedestrian-intelligent vehicle,P-IV)产生交互的典型场景,针对P-IV交互过程中缺乏交互阶段的定量划分,提出行人穿行风险状态评估(Pedestrian crossingriskassessment,PCRA)模型,该模型依据行人与车辆运动之间的时空关联,将P-IV交互过程定量划分为四个阶段,并明确各阶段边界。针对缺乏探讨显式沟通信息对P-IV交互策略及行人预测的影响,首先基于PCRA模型预测行人的纵向可穿行范围,将其作为智能汽车向行人传递的动态显式沟通信息;然后分析显式沟通下的P-IV交互决策顺序,结合交互过程中行人穿行行为的关键特征量,依据模糊理论建立融合预测层与识别层的行人穿行行为预测模型。试验结果表明,PCRA模型能够准确评估行人穿行风险,定量预测行人的纵向可穿行范围;行人穿行行为预测的平均提前时间为0.46 s,达到有效预测效果。

关键词: 智能汽车, 行人穿行预测, 人车交互, 显式沟通, 风险评估

Abstract: Indoor parking lots are the typical scenario of pedestrian-intelligent vehicle(P-IV) interaction. Aiming at the lack of quantitative division of interaction stages in the P-IV interaction process, a pedestrian crossing risk assessment(PCRA) model is proposed. The model quantitatively divides the P-IV interaction process into four basic stages according to the spatiotemporal relationship between pedestrian motion and vehicle motion, and clarifies the boundaries of each stage. In view of the lack of exploring the influence of explicit communication information on P-IV interaction strategy and pedestrian prediction, the longitudinal available crossing range of pedestrians is firstly predicted based on the PCRA model, which is used as the dynamic and explicit communication information transmitted by intelligent vehicles to pedestrians. Then, the P-IV interactive decision-making sequence is analyzed under explicit communication. And combined with the key features of pedestrian crossing behavior in the interaction process, a pedestrian crossing behavior prediction model integrating prediction layer and recognition layer is established based on fuzzy theory. The experimental results show that the PCRA model can accurately assess the pedestrian crossing risk and quantitatively predict the longitudinal available crossing range of pedestrian; the average advance time of the pedestrian crossing behavior prediction is 0.46 s,which achieves an effective prediction effect.

Key words: intelligent vehicles, pedestrian crossing prediction, P-IV interaction, explicit communication, risk assessment

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