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Automobile active suspension system with fuzzy control

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Abstract

A quarter-automobile active suspension model was proposed. High speed on/off solenoid valves were used as control valves and fuzzy control was chosen as control method. Based on force analyses of system parts, a mathematical model of the active suspension system was established and simplified by linearization method. Simulation study was conducted with Matlab and three scale coefficients of fuzzy controller (k e, k ec, k u) were acquired. And an experimental device was designed and produced. The results indicate that the active suspension system can achieve better vibration isolation performance than passive suspension system, the displacement amplitude of automobile body can be reduced to 55%. Fuzzy control is an effective control method for active suspension system.

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Authors and Affiliations

  1. College of Mechanical and Electrical Engineering, Central South University, 410083, Changsha, China

    Liu Shao-jun (Professor), Huang Zhong-hua & Chen Yi-zhang

Authors
  1. Liu Shao-jun
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  2. Huang Zhong-hua
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  3. Chen Yi-zhang
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Correspondence to Liu Shao-jun.

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Foundation item: Project (2000-01131) supported by the Foundation of Ministry of Education of China

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Liu, Sj., Huang, Zh. & Chen, Yz. Automobile active suspension system with fuzzy control. J Cent. South Univ. Technol. 11, 206–209 (2004). https://doi.org/10.1007/s11771-004-0042-1

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  • DOI: https://doi.org/10.1007/s11771-004-0042-1

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