有限時間整定関数をリフティングとするプレビューサンプル値制御による自動車のローリング制振

抄録

We proposed the active suspension for rolling oscillation based on piecewise sampled-data control with finite-time settling function, termed vibration manipulation function (VMF). In the piecewise sampled-data control, the difference between the angle of the suspension base and the road surface profile was compensated by extending and retracting the actuator between the unsprung mass and the suspension base in each manipulation. By obtaining road surface profile in advance, active suspension worked much efficiently. Under the feedforward control of the angle between the suspension bases along vibration manipulation function, we can cease rolling vibration of the vehicle body at the end of each operation. From the simulation results, the proposed active suspension can suppress rolling vibration after various road surface irregularities. In addition, a large damping effect was obtained with a small amount of the actuator drive. The skyhook damper that was compared took several cycles to reduce the residual vibration.