Abstract
This study aims at achieving simultaneous realization of ride comfort and steering stability for vehicle semi-active suspension considering driving condition. In this study, we proposed the algorithm which can improve both ride comfort and steering stability considering human sensitivity and phase difference of vehicle body motion by separating control range in terms of frequency domain. In consideration of the above concepts, we designed frequency weightings and the criterion function in frequency domain. Furthermore, we proposed the design of the integrated controller adapted driving condition such as steering and road condition. And we confirmed utility of the suggestion technique through simulation.
