China Mechanical Engineering

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Vehicle Rollover Predicting Systems Based on Grey Prediction Theory

ZHAO Youqun;JIN Yingzhi;JI Lin   

  1. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,210016
  • Online:2018-05-10 Published:2018-05-09
  • Supported by:
    National Natural Science Foundation of China(No. 11672127,11072106)
    Fundamental Research Funds for the Central Universities(No. NP2016412)

基于灰色预测的驾驶员-汽车系统侧翻预测

赵又群;金颖智;季林   

  1. 南京航空航天大学能源与动力学院,南京,210016
  • 基金资助:
    国家自然科学基金资助项目(11672127,11072106);
    中央高校基本科研业务费专项资金资助项目(NP2016412)
    National Natural Science Foundation of China(No. 11672127,11072106)
    Fundamental Research Funds for the Central Universities(No. NP2016412)

Abstract: In order to guarantee the high speed train operation safety, an estimation of rollover evaluation index was studied based on preview-estimate driver model,and a vehicle rollover predicting system was designed based on preview-estimate driver model.Focused on the cars with high center of gravity, a three degree-of-freedom vehicle rollover dynamic model and a driver model were built.And the preview-estimate driver model was established based on the preview-follower theory and the theory of grey prediction.According to the mechanism of rollover, the LTR that could reflect the rollover situation was introduced, and the vehicle rollover index estimation-prediction model was proposed.And the vehicle rollover prediction system was established based on the active-steering rollover prevention control strategy and estimate-prediction model of vehicle rollover index.The rollover prediction system was proposed for the simulation analysis under different working conditions, and the effectiveness of the proposed system was confirmed.

Key words: rollover, lateral-load transfer ratio(LTR), driver modeling, grey prediction

摘要: 为了保证高速行车安全性,研究了基于预瞄-预测模型的汽车侧翻评价指标估计问题,提出了一种基于预瞄-预测驾驶员模型的侧翻预测方法。以高重心汽车为研究对象,建立了三自由度汽车模型和预瞄驾驶员模型;基于预瞄-跟随理论和灰色预测理论,搭建了预瞄-预测驾驶员模型;根据汽车侧翻的机理提出了能反映侧翻情况的指标——横向载荷转移率,并在此基础上提出了汽车侧翻指标估计-预测模型;基于主动转向控制策略和汽车侧翻指标估计-预测模型构建了汽车侧翻预测系统,并进行了不同工况下的仿真分析,从而验证了侧翻预测系统的有效性。

关键词: 侧翻, 横向载荷转移率, 驾驶员建模, 灰色预测

CLC Number: