吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (2): 296-304.doi: 10.13229/j.cnki.jdxbgxb201402004

• 论文 • 上一篇    下一篇

基于随机算法的级联车速观测器设计

郭洪艳1,2, 陈虹1,2, 高振海1, 于海洋2, 吉岩2   

  1. 1. 吉林大学 汽车仿真与控制国家重点实验室, 长春 130022;
    2. 吉林大学 通信工程学院, 长春 130022
  • 收稿日期:2013-02-26 出版日期:2014-02-01 发布日期:2014-02-01
  • 通讯作者: 陈虹(1963- ),女,教授,博士生导师.研究方向:汽车电子控制.E-mail:chenh@jlu.edu.cn E-mail:chenh@jlu.edu.cn
  • 作者简介:郭洪艳(1980- ),女,博士,讲师.研究方向:车辆状态参数估计.E-mail:guohongyan220@163.com
  • 基金资助:

    国家自然科学基金重大项目(91220301);教育部"长江学者和创新团队项目发展计划"创新团队项目(IRT1017);"973"国家重点基础研究发展计划项目(2012CB821202).

Design of cascaded vehicle velocity observer based on randomized algorithms

GUO Hong-yan1,2, CHEN Hong1,2, GAO Zhen-hai1, YU Hai-yang2, JI Yan2   

  1. 1. State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China;
    2. College of Communication Engineering, Jilin University, Changchun 130022, China
  • Received:2013-02-26 Online:2014-02-01 Published:2014-02-01

摘要:

为降低复杂轮胎模型带来的运算负担,首先在数据/机理混合描述的轮胎模型的基础上得到车辆动力学描述并进行了模型验证。然后,采用模块化估计策略,设计非线性级联车速观测器,并利用随机算法对级联车速观测器参数及增益选取进行了讨论。为验证车速观测器的估计效果,在车辆运行的常规和极限工况下进行了仿真研究,并与降阶车速观测器方法及高精度车辆动力学模型进行了对比研究。结果表明,采用随机算法得到的级联车速观测器参数和增益可获得较好的估计效果,同时,采用数据/机理混合建模方法设计观测器可得到较快的计算速度。

关键词: 车辆工程, 级联观测器, 随机算法, 数据/机理建模

Abstract:

In order to reduce the computational cost of complex tyre model, the vehicle dynamics description is obtained based on the mixed data/physics tyre model and the mixed model is validated. Then, the nonlinear cascaded observer is designed using the modular estimation scheme. The selections of parameters and gain of the cascaded observer are discussed using randomized algorithm. For the sake of verifying the estimation results of the vehicle velocities, simulations are carried out under the normal and critical running conditions. The estimation results are compared with the nonlinear reduced-order observer and with the high precision vehicle dynamic model. The simulation results show that the observer parameters and gains obtained from the randomized algorithm are good estimations. Moreover, faster computation speed could be received using data/physics modeling method.

Key words: vehicle engineering, cascaded observer, randomized algorithm, data/physics modeling

中图分类号: 

  • TP29

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