Linear Quadratic Regulator and Fuzzy controller application in full-car model of suspension system with Magnetorheological shock absorber

Proceedings of 2010 IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications Pub Date : 2010-07-15 DOI:10.1109/MESA.2010.5552010

A. F. Jahromi, A. Zabihollah

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引用次数: 35

Abstract

A novel semi-active control system for suspension systems of passenger car using Magnetorheological (MR) damper is introduced. The suspension system is considered as a mass-spring model with a seven-degrees-of-freedom, a passive damper and an active damper. The semi-active vibration control is designed to reduce the amplitude of automotive vibration caused by the alteration of road profile. The control mechanism is designed based on the optimal control algorithm and Fuzzy logic, Linear Quadratic Regulator (LQR) and Fuzzy controller. In this system, the damping coefficient of the shock absorber changes actively through inducing magnetic field. It is observed that utilizing the present control algorithm may significantly reduce the vibration response of the passenger car and eliminate effect of the disturbance in the system, thus, providing comfortable drive. The new developed suspension system may lead to design and manufacturing of passenger car in which the passenger may not feel the changes in road profile from highly bumpy to smooth profile.

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线性二次型调节器和模糊控制器在磁流变减振器悬架全车模型中的应用

介绍了一种基于磁流变阻尼器的乘用车悬架半主动控制系统。将悬架系统考虑为具有7个自由度的质量-弹簧模型，具有被动阻尼器和主动阻尼器。半主动振动控制是为了减小道路轮廓变化引起的汽车振动幅值而设计的。基于最优控制算法和模糊逻辑、线性二次型调节器(LQR)和模糊控制器设计了控制机构。在该系统中，减振器的阻尼系数通过感应磁场主动变化。结果表明，采用本控制算法可以显著降低乘用车的振动响应，消除系统中扰动的影响，从而提供舒适的驾驶。新开发的悬架系统可能会导致乘用车的设计和制造中，乘客可能感觉不到道路轮廓从高度颠簸到平滑的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of 2010 IEEE/ASME International Conference on Mechatronic and Embedded Systems and Applications

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