【摘要】：針對因主動懸架控制存在參數(shù)不確定導(dǎo)致標稱系統(tǒng)控制易出現(xiàn)魯棒性差問題,考慮了彈簧剛度、減振器阻尼、輪胎剛度、簧載質(zhì)量及電機作動器的電機常數(shù)等參數(shù)的不確定性,通過線性分式變換建立了含不確定性的半車懸架動力學(xué)模型。基于結(jié)構(gòu)奇異值理論,設(shè)計了μ綜合控制器,結(jié)合某車參數(shù)進行了頻域與時域仿真,并將μ綜合控制與H∞控制進行了對比。仿真結(jié)果表明所設(shè)計的魯棒μ綜合控制器比H∞控制具有更好的魯棒性能,能更有效地改善車輛的平順性、減小懸架的動撓度及車輪動載。
[Abstract]:In view of the problem of poor robustness in nominal system control caused by uncertain parameters in active suspension control, the uncertainties of spring stiffness, damper damping, tire stiffness, spring load mass and motor constant of motor actuator are considered. The dynamic model of semi-vehicle suspension with uncertainty is established by linear fractional transformation. Based on the structural singular value theory, the 渭 synthesis controller is designed, and the frequency domain and time domain simulation are carried out in combination with some vehicle parameters, and the 渭 synthesis control and H 鈭，

本文編號：2278523