| 全轮转向多轴车辆性能分析及侧翻前馈预警研究 |
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| 引用本文： | 张志达,李韶华,刘星,周军魏. 全轮转向多轴车辆性能分析及侧翻前馈预警研究[J]. 北京理工大学学报, 2018, 38(S1): 142-146 |
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| 作者姓名： | 张志达 李韶华 刘星 周军魏 |
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| 作者单位： | 石家庄铁道大学 机械工程学院, 河北, 石家庄 050043,石家庄铁道大学 机械工程学院, 河北, 石家庄 050043,石家庄铁道大学 机械工程学院, 河北, 石家庄 050043,石家庄铁道大学 机械工程学院, 河北, 石家庄 050043 |
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| 基金项目： | 国家自然科学基金项目（11472180，11602153） |
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| 摘 要： | 为研究多轴车辆的稳定性和安全性，建立了线性2自由度全轮转向车辆模型，并根据阿克曼原理计算了车辆的转向比例系数.基于准静态侧倾理论估计车辆的横向载荷转移率，利用拉普拉斯变换求解横摆角速度增益，进而提出了一种侧翻前馈预警算法.通过理论值与仿真值对比，发现所提出的算法可对车辆的侧倾状态进行有效的前馈预测，并且应用该算法还可计算出车辆转向时的极限车速和极限转角.研究对于车辆侧倾状态估计和侧翻控制预警具有重要的借鉴意义.
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| 关 键 词： | 多轴车辆 全轮转向 拉普拉斯变换 侧翻预警 |
| 收稿时间： | 2018-06-15 |
Performance Analysis and Rollover Feed-Forward Warning for Multi-Axle Vehicle with All Wheel Steering |
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| Zhang Zhid,Li Shaohu,Liu Xing and Zhou Junwei. Performance Analysis and Rollover Feed-Forward Warning for Multi-Axle Vehicle with All Wheel Steering[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2018, 38(S1): 142-146 |
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| Authors: | Zhang Zhid Li Shaohu Liu Xing Zhou Junwei |
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| Affiliation: | School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China,School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China,School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China and School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang, Hebei 050043, China |
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| Abstract: | In order to study the stability and safety of multi-axle vehicles, a linear 2 degree of freedom vehicle model with full wheel steering was established, and the steering ratio coefficients of vehicle were calculated according to Ackerman principle. Lateral load transfer rate of vehicle was estimated based on the quasi static lateral inclination theory, the yaw angular velocity gain was solved with Laplasse transform, and a rollover forward feedforward early warning algorithm was proposed. Through the comparison of theoretical values and simulation values, it is found that the proposed algorithm can predict the vehicle''s tilting state effectively, and the algorithm can also calculate limit speed and limit angle of vehicle steering. The research has important reference significance for vehicle tilting state estimate and rollover control early warning. |
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| Keywords: | multi-axle vehicle all wheel steering Laplasse transform rollover warning |
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