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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2003, Vol. 4 Issue (4): 426-432    DOI: 10.1631/jzus.2003.0426
Electronics & Electrical Engineering     
Signal frequency based self-tuning fuzzy controller for semi-active suspension system
SUN Tao, HUANG Zhen-yu, CHEN Da-yue, TANG Lei
Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China
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Abstract  A new kind of fuzzy control scheme, based on the identification of the signal\'s main frequency and the behavior of the ER damper, is proposed to control the semi-active suspension system. This method adjusts the fuzzy controller to achieve the best isolation effect by analyzing the main frequency\'s characters and inspecting the change of system parameters. The input of the fuzzy controller is the main frequency and the optimal damping ratio is the output. Simulation results indicated that the proposed control method is very effective in isolating the vibration.

Key words： Semi-active suspension      ER damper      Frequency identification      Fuzzy controller     
Received: 21 July 2002     
CLC:  TP872  
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SUN Tao
HUANG Zhen-yu
CHEN Da-yue
TANG Lei
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SUN Tao, HUANG Zhen-yu, CHEN Da-yue, TANG Lei. Signal frequency based self-tuning fuzzy controller for semi-active suspension system. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(4): 426-432.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2003.0426     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2003/V4/I4/426

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