Minimal order observer based sensorless control for air spring type anti-vibration apparatus

An air spring type anti-vibration apparatuses are widely utilized. However, the high resolution sensors are needed for the pressure feedback control. This paper considers pressure estimation of anti-vibration apparatuses. The number of the parameters in the proposed observer is reduced in order to tune parameters efficiently. Moreover, the tuning procedure changes according to the observer poles. The effectiveness of proposed method is shown by experiments.