Linear Quadratic Control with Pole Placement for an Automotive Active Suspension System

극점배치기능을 갖는 LQ제어기 설계 및 자동차 능동 현가장치 제어에의 응용

In this paper, a relation of matrix Q in cost function to distances between the closed-loop and open-loop poles of a multi input controllable systems is studied. Futhmore, the state feedback gain with exact desired eigenvalues in the LQR is computed. The proposed scheme is applied to designing automotive active suspension control system for a half-car model and its performance is compared with the existing LQR control system design methodology.