Experimental System Identification and Black Box Modeling of Hydraulic Directional Control Valve

Nonlinear black-box modeling in system identification: a unified overview

A nonlinear black-box structure for a dynamical system is a model structure that is prepared to describe virtually any nonlinear dynamics. There has been considerable recent interest in this area, with structures based on neural networks, radial basis networks, waveiet networks and hinging hyperplanes, as well as wavelet-transform-based methods and models based on fuzzy sets and fuzzy rules. Th...

Theoretical and Experimental Analysis of a Coupled System Proportional Control Valve and Hydraulic Cylinder

The aim of this paper is to analyze the driving system actuated by a proportional directional control valve on a hydraulic cylinder. In order to evaluate the dynamic interaction between the proportional valve and the cylinder theoretical analysis, numerical simulations as well as experimental test are performed. Coupling cylinder and proportional valve, it is very important to know the ratio of...

Nonlinear Black-box Modeling in System Identiication

Exponential Tracking Control of a Hydraulic Proportional Directional Valve and Cylinder via Integrator Backstepping∗

Hydraulic systems are widely used in manufacturing processes and transportation systems where energy intensive operations are performed and “machine” control is vital. A variety of ßow control products exist including manual directional control valves, proportional directional control valves, and servo-valves. The selection of a control valve actuation strategy is dependent on the system respon...

Control of Nonlinear Systems Using Multiple Model Black-Box Identification

The paper is devoted to development of control algorithms for nonlinear parametrically uncertain systems. Original system dynamics is approximated by a set of local NARX models combined by a special mixing rule. Algorithm for local models’ parameters estimation and structure adjustment has been developed. Proposed approach allows straightforward designing of the combined feedforward/feedback co...