새로운 적응복합제어기를 이용한 MR 시트현가장치의 진동제어

초록

In this work, a new adaptive composite controller is designed and applied to vibration control of a magneto-rheological (MR) damper based seat suspension. The proposed controller consists of the interval type 2 fuzzy model, sliding mode controller and adaptive controller. After formulating the composite controller associated with adaptation laws, a robust stability is solidly proved using the Lyapunov stability criterion. Subsequently, its effectiveness is demonstrated by implementing it to the vibration control of a vehicle seat suspension associated with MR damper. Vibration control performances are evaluated at two different road profiles; regular bump and random wave road. It is experimentally shown that the proposed controller can provide better vibration control performances than a comparative composite controller showing lower level of the displacement and acceleration at the driver position.

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