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Improvement of Ride Comfort by Continuously Controlled Damper
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English
Abstract
The object of this study is to investigate the possibility of improving ride comfort, and develop a new damping control system. We supposed and analyzed the ideal damping control for vehicle suspension system using optimal control strategy. The parameter study shows the effect of reducing vehicle acceleration from road excitation. To achieve the same performance with a more simple and lower cost control strategy, we introduce another control strategy called ‘Skyhook model’ proposed by D.Karnopp. Continuously damping control system is developed based on this to avoid some problems that might be caused in the case of a two-stage switching system. Further more, variable control gain depends on vehicle vibration circumstances introduced to realize the adaptation of various road conditions. Using computer simulation and testing the experimental vehicle, effectiveness of this system is evident and the possibility of ride comfort improvement is verified by using this control.
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Citation
Katsuda, T., Hiraiwa, N., Doi, S., and Yasuda, E., "Improvement of Ride Comfort by Continuously Controlled Damper," SAE Technical Paper 920276, 1992, https://doi.org/10.4271/920276.Also In
References
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- Yamaguchi Doi Yasuda et al. “Suspension Control using Observer” Proc. of Society of Automotive Engineering of Japan, No.902203 1990
- Karnopp D.C. et al. “Vibration Control using a Semi-Active Force Generator” Trans. ASME, J ournal of Engineering for Industry 96 1974
- Shioneri Nagai “Theoretical Study on Stability of Semi-active Suspension” Journal of Society of Automotive Engineers of Japan 42 1989 90 94