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Proceedings Paper

Active seat suspension for a small vehicle: considerations for control system including observer
Author(s): Hiroyuki Katsumata; Hiroshi Shiino; Yasuo Oshinoya; Kazuhisa Ishibashi; Koichi Ozaki; Hirohiko Ogino
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Paper Abstract

We have examined the improvement of ride quality and the reduction of riding fatigue brought about by the active control of the seat suspension of small vehicles such as one-seater electric automobiles. A small active seat suspension, which is easy to install, was designed and manufactured for one-seater electric automobiles. For the actuator, a maintenance-free voice coil motor used as a direct drive was adopted. For fundamental considerations, we designed a one-degree-of-freedom model for the active seat suspension system. Then, we designed a disturbance cancellation control system that includes the observer for a two-degree-of-freedom model. In an actual driving test, a test road, in which the concavity and convexity of an actual road surface were simulated using hard rubber, was prepared and the control performance of vertical vibrations of the seat surface during driving was examined. As a result, in comparison with the one-degree-of-freedom control system, it was confirmed that the control performance was improved by the two-degree-of-freedom control system that includes the observer.

Paper Details

Date Published: 9 January 2008
PDF: 6 pages
Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 67941U (9 January 2008); doi: 10.1117/12.784464
Show Author Affiliations
Hiroyuki Katsumata, Tokai Univ. (Japan)
Hiroshi Shiino, Tokai Univ. (Japan)
Yasuo Oshinoya, Tokai Univ. (Japan)
Kazuhisa Ishibashi, Tokai Univ. (Japan)
Koichi Ozaki, Tokai Univ. (Japan)
Hirohiko Ogino, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 6794:
ICMIT 2007: Mechatronics, MEMS, and Smart Materials
Minoru Sasaki; Gisang Choi Sang; Zushu Li; Ryojun Ikeura; Hyungki Kim; Fangzheng Xue, Editor(s)

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