Abstract: A novel nonlinear sliding mode controller has recently been developed for direct acting proportional solenoid valves. This paper presents a comparison between the valve performance using this ...

Abstract: The application of an indirect (self-tuning) adaptive controller to an electro-hydraulic positioning system is described. The underlying control method is pole placement, with the addition of a ...

Abstract: Sliding mode control has been promoted as a means to overcome the nonlinearities associated with pneumatic positioning systems. Previously published performance results have been disappointing with ...

Abstract: A nonlinear dynamic model of a high speed direct acting solenoid valve is presented. The valve consists of two subsystems; a proportional solenoid and a spool assembly. These two subsystems ...