Abstract
When a railway vehicle negotiates curved tracks at high-speeds, the car body contacts with lateral stopper due to the excessive centrifugal force, and the ride comfort gets worse. In this situation, there is possibility that vibration control in active suspension does not work effectively. This paper deals with the addition of centering control, that pulls back car body to the center position from the outer side. Considering the difference of frequency range to be controlled between the vibration control and the centering control, H_∞control law is employed. As a result, it is made clear that cooperative work of both controls can be realized although there is a trade-off relation between them.
