Robust Control of Active Vehicle Suspension System with Uncertain Parameters Based on LMI Approach

سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 310

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شناسه ملی سند علمی:

MECHAERO06_017

تاریخ نمایه سازی: 8 آبان 1400

چکیده مقاله:

This paper deals with the robust H∞ control design for active suspension systems with uncertain parameters.The mass variation for the vehicle's body is assumed as an uncertain time-variant but within a known constant bound.By properly formulating the sprung mass acceleration, suspension deflection, and the Tyre deflection as theoptimization object, a state-feedback H∞ controller has been designed in terms of the feasibility of linear matrixinequalities. A quarter-car model for active suspension has been considered, and the proposed controller has beenevaluated and confirmed by simulation in MATLAB/Simulink environment. It is approved by the simulation that thedesigned controller can achieve the optimal performance for active suspensions and keeps the closed-loop stabilitydespite the existence of uncertain parameters within the allowable bound.

نویسندگان

AmirReza BabaAhmadi

School of mechanical engineering, University of Tehran, Tehran, Iran

Parisa Beirami

Department of Mechanical and Materials Engineering, Portland state university, Portland, OR, USA