## Matlab基于模糊控制的1/4汽车主动悬架系统仿真研究

Title  Research on the simulation 1/4 vehile active suspension system based on fuzzy control
Abstract
Current society, people on the car comfort and handling stability put forward higher requirements, in the people to the automobile speed pursuit of more and more high, so the automobile suspension system optimization and innovation is very important.At present, the car is mainly used passive suspension, because the passive suspension by dampers and elastic suspension structure and system parameters once setting is fixed, therefore is unable to adapt to the changing conditions, can not meet the expected performance requirements.Because of the disadvantages of passive suspension, the semi-active suspension and active suspension system are studied and designed..The active suspension system has better vibration characteristics than the passive suspension system, which can meet the requirements of comfort and stability of the vehicle under different conditions.

In order to build the vehicle dynamics model, the knowledge and theory of the automobile suspension system is studied and studied.Through the relevant kinetic theory knowledge, the suspension system of the automobile is simplified, and the mathematical model of the active suspension with two degrees of freedom of 1/4 is established.The performance of the active fuzzy suspension and the passive suspension is analyzed by Matlab simulation.
Keywords ： Active suspension ；Control strategy ；Fuzzy control；Simulation analysis

1 文献综述1
1.1研究背景及意义 1
1.2国内外研究现状1
1.3悬架系统的分类2
1.4主动悬架的控制理论2
1.5课题的主要研究内容4
2 汽车主动悬架动力学模型5
2.1 悬架系统的性能评价标准5
2.2 随机路面模型的建立5
2.3 路面谱仿真模型6
2.4 1/4车两自由度主动悬架模型9
3 主动悬架的模糊控制理论12
3.1 模糊控制概述12
3.2 模糊控制基础理论12
3.3模糊控制器的实现13
4 仿真结果与分析19
4.1 Matlab简介19
4.2  Matlab仿真建模分析19
4.3 仿真结果比较分析 20
4.4 结论26
5  总结与期望27
5.1总结27
5.2建议与期望27

1绪论
1.1 研究背景及意义
汽车具有舒适和方便的特点极大改善了人们的生活质量。在国民经济方面，由于世界汽车工业的蓬勃发展，它不仅促进了社会生产生产率和劳动率，同时有效的促进了国民经济的发展[1]，并且对世界经济的平稳发展和社会的进步产生了巨大的作用和深远的影响，因此世界上许多国家把汽车产业作为国家的支柱产业[2]。汽车产业的蓬勃发展，不仅方便和改善了人们生活，促进世界经济发展和社会进步，而且还有力地推动科学技术发展，汽车产业的发展，还有力地推动科学技术的发展。 Matlab基于模糊控制的1/4汽车主动悬架系统仿真研究:http://www.lwfree.cn/zidonghua/20181223/28214.html
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