汽车工程 ›› 2023, Vol. 45 ›› Issue (7): 1212-1221.doi: 10.19562/j.chinasae.qcgc.2023.07.012
所属专题: 底盘&动力学&整车性能专题2023年
孙晓强1(
),王玉麟1,胡伟伟1,蔡英凤1,陈龙1,Wong Pak Kin2
收稿日期:2022-04-25
修回日期:2022-05-29
出版日期:2023-07-25
发布日期:2023-07-25
通讯作者:
孙晓强
E-mail:sxq@ujs.edu.cn
基金资助:
Xiaoqiang Sun1(
),Yulin Wang1,Weiwei Hu1,Yingfeng Cai1,Long Chen1,Wong Pak Kin2
Received:2022-04-25
Revised:2022-05-29
Online:2023-07-25
Published:2023-07-25
Contact:
Xiaoqiang Sun
E-mail:sxq@ujs.edu.cn
摘要:
以车辆横向运动过程中的行驶状态精确估计为目标,提出了一种考虑轮胎非线性侧偏力学特性的行驶状态估计算法。为准确反映特殊行驶工况下车辆横向动力学行为演化规律,采用分段仿射辨识方法建立了轮胎非线性侧偏力学特性模型,进而实现整车横向动力学分段仿射模型的构建。在此基础上,基于强跟踪平方根容积卡尔曼滤波算法设计了针对系统分段仿射模型的“多模切换”行驶状态估计策略,以期当系统状态发生突变时依然能够保持良好的状态估计精度。基于CarSim和Matlab/Simulink建立了车辆行驶状态估计性能联合仿真验证平台,通过设置两种典型工况,对车辆横摆角速度和质心侧偏角的状态估计效果进行了验证。结果表明,所提出的估计算法能够实现特殊行驶工况下车辆行驶状态的高精度估计。
孙晓强, 王玉麟, 胡伟伟, 蔡英凤, 陈龙, Wong Pak Kin. 基于轮胎分段仿射辨识模型的车辆行驶状态估计策略研究[J]. 汽车工程, 2023, 45(7): 1212-1221.
Xiaoqiang Sun, Yulin Wang, Weiwei Hu, Yingfeng Cai, Long Chen, Wong Pak Kin. Research on Estimation Strategy of Vehicle Driving State Based on Tire Piecewise Affine Identification Model[J]. Automotive Engineering, 2023, 45(7): 1212-1221.
表1
仿射子模型参数"
| PWA模型 | 仿射子模型参数 | PWA模型 | 仿射子模型参数 | ||||
|---|---|---|---|---|---|---|---|
| 低附路面 | -1 509.0 | 0.011 | -979.4 | 高附路面 | -0.115 | 779.5 | -460.0 |
| -949.7 | -0.312 | 2 091.0 | 0.124 | -1 233.0 | -441.7 | ||
| -907.3 | 0.197 | -1 835.0 | -0.263 | 1 504.0 | -258.3 | ||
| -589.1 | 0.490 | -3 005.0 | 0.256 | -968.2 | -172.2 | ||
| -262.3 | -0.654 | 1 559.0 | -0.216 | 1 428.2 | -338.0 | ||
| -512.6 | -0.572 | 2 783.3 | -0.010 | -232.2 | -685.7 | ||
| -960.9 | 0.367 | -3 754.0 | -0.302 | 752.2 | -120.0 | ||
| -293.8 | 0.620 | -1 873.0 | 0.264 | -538.1 | -120.2 | ||
| -1 276.0 | -0.184 | 1 226.2 | 0.223 | -1 377.0 | -266.4 | ||
| -763.1 | -0.458 | 2 948.0 | -0.289 | 1 107.4 | -170.5 | ||
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