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Nonlinear Research and Efficient Parameter Identification of Magic Formula Tire Model

机译:魔术配方轮胎模型的非线性研究及有效参数辨识

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摘要

The Magic Formula tire model can describe the mechanical properties of tire accurately and thus is applied in the research field of vehicle dynamics widely. The Magic Formula tire model has the characteristics of a great number of parameters and the high nonlinearity, so it is hard to identify parameters. Researchers generally use different intelligent optimization algorithms for parameter identification. However, in the process of parameter identification, with a fewexperimental data, parameter identification results generally have the low accuracy, while, in the case of a large number of experimental data, the amount of work done in the experiment will increase and there will be many experimental errors. To solve these problems, this paper researches the longitudinal force of tire and proposes an interpolation method and a method based on the nonlinear research of the tire force. The results of parameter identification experiments on the two kinds of tire data show that both of the twomethods can be used for the parameter identification of Magic Formula tire model fast and accurately with only a few experimental data. In addition, this paper proposes a method estimating the maximum longitudinal force and corresponding slip rate.
机译:Magic Formula轮胎模型可以准确地描述轮胎的机械性能,因此被广泛应用于车辆动力学研究领域。 Magic Formula轮胎模型具有大量参数和高度非线性的特性,因此很难识别参数。研究人员通常使用不同的智能优化算法进行参数识别。但是,在参数辨识的过程中,由于实验数据少,参数辨识的结果一般精度较低,而在大量实验数据的情况下,实验工作量将会增加,并且许多实验错误。为了解决这些问题,本文研究了轮胎的纵向力,提出了一种插值法和一种基于轮胎力非线性研究的方法。对两种轮胎数据进行参数识别实验的结果表明,仅使用少量实验数据,这两种方法都可以快速,准确地用于魔术方程式轮胎模型的参数识别。此外,本文提出了一种估计最大纵向力和相应滑移率的方法。

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  • 来源
    《Mathematical Problems in Engineering》 |2017年第9期|6924506.1-6924506.9|共9页
  • 作者

    Cheng Zhun; Lu Zhixiong;

  • 作者单位

    Nanjing Agr Univ, Coll Engn, Nanjing 210031, Jiangsu, Peoples R China;

    Nanjing Agr Univ, Coll Engn, Nanjing 210031, Jiangsu, Peoples R China;

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