An electro-pneumatic active vibration control system for the driver's seat of agricultural tractors

The aim of this contribution is to present some results of the study of driver's seat with an electro-pneumatic active vibration control system applied for driver's seats of agricultural wheeled tractors. The actuator is parallel to the conventional pneumatic seat suspension and a proportional electro-pneumatic valve is used as the control element. The description of the full scale dummy system is augmented by a short theoretical description of the 1 DOF model of this system and by some results of measurements on a laboratory vibration simulator. The seat vibration control properties are evaluated according to the ISO Standard 5007:1990 pertinent to evaluation of seats for agricultural wheeled tractors.