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Received: 2004-07-05

Revision Accepted: 2004-07-12

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.9 P.1060~1068

http://doi.org/10.1631/jzus.2004.1060


Pneumatic active suspension system for a one-wheel car model using fuzzy reasoning and a disturbance observer


Author(s):  YOSHIMURA Toshio, TAKAGI Atsushi

Affiliation(s):  Department of Mechanical Engineering, Faculty of Engineering, Tokushima University, Minamijosanjima-cho 2-1, Tokushima 770-8506, Japan

Corresponding email(s):   yosimura@me.tokushima-u.ac.jp

Key Words:  One-wheel car model, Active suspension system, Fuzzy reasoning, Pneumatic actuator, Disturbance observer


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YOSHIMURA Toshio, TAKAGI Atsushi. Pneumatic active suspension system for a one-wheel car model using fuzzy reasoning and a disturbance observer[J]. Journal of Zhejiang University Science A, 2004, 5(9): 1060~1068.

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Abstract: 
This paper presents the construction of a pneumatic active suspension system for a one-wheel car model using fuzzy reasoning and a disturbance observer. The one-wheel car model can be approximately described as a nonlinear two degrees of freedom system subject to excitation from a road profile. The active control is composed of fuzzy and disturbance controls, and functions by actuating a pneumatic actuator. A phase lead-lag compensator is inserted to counter the performance degradation due to the delay of the pneumatic actuator. The experimental result indicates that the proposed active suspension improves much the vibration suppression of the car model.

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Reference

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[10] Yoshimura, T., Isari, Y., Li, Q., Hino, J., 1997a. Active suspension of motor coaches using skyhook damper and fuzzy logic controls. Control Engineering Practice, 5(2):175-184.

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[14] Yoshimura, T., Watanabe, K., 2003. Active suspension of a full car model using fuzzy reasoning based on single input rule modules with dynamic absorbers. International Journal of Vehicle Design, 31(1):22-40.

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