Estimation of Vertical Vibration of Vertical Semi-Active Vibration Control Vehicle Using Track Irregularity

Abstract

We use the technique that is called system identification by ARX model using the relationship between track irregularity and vertical vibration in the vertical semi-active vibration control vehicle with nonlinearity. It is confirmed that by using a filter that predicts vertical vibration from track irregularity, it is possible to estimate vertical vibration with accuracy that is practically acceptable in the frequency band of track irregularity. We also confirmed that vertical vibration can be estimated even if the prediction filter obtained in the local line section is applied to the track irregularity in the high speed line section.