@article{oai:niigata-u.repo.nii.ac.jp:00003815,
 author = {外山, 茂浩 and 横山, 誠 and 愛田, 一雄},
 issue = {639},
 journal = {日本機械学会論文集. C編, 日本機械学会論文集. C編},
 month = {Nov},
 note = {In this paper, an observer design method is proposed for semiactive suspensions using VSS (Variable Structure System) theory, which provides a highly robust property against modeling errors and disturbances in the context of the matching conditions. The structure of the proposed observer is designed to be robust against the road variations which can be seen as nonstationary system disturbances. Although this structure basically requires to measure the actual damping force, it is estimated with a model of the damper. Therefore the influence of the estimation errors of the damping force on the state estimation is discussed in details, and the sufficient conditions for stability of the observer are given using Lyapunov theory. As a result, both the structure and design process of the proposed observer are simplified in comparison with existing ones. Numerical simulations illustrate not only the robust property of the proposed observer against the road variations but also a robust property against some unmatched modeling errors.},
 pages = {4415--4422},
 title = {VSSオブザーバによるセミアクティブサスペンションの状態推定},
 volume = {65},
 year = {1999}
}