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Mathematic model of electro-hydraulic pressure servo test bench was obtained based on xPC technique. In order to improve the tracking performance of the pressure servo system a new nonlinear hybrid controller was developed according to the mathematic model, which composed of a classical PID controller and a fuzzy controller based on self-adjusting modifying factor. And interpolation method was used...
A hybrid fuzzy control scheme was applied to improve the rigidity of hydrostatic thrust bearing. The bearing oil film control was realized by coupling oil film thickness of four controllable chambers. The chamber flow can be regulated by electro hydraulic servo valve-control variable pump according to the surface roughness, load, cutting force, and thermal effects of worktable. The nonlinear hybrid...
In view of introduction of the composition and working principle of the electro-hydraulic position servo control system, the mathematical model of the system was built. In order to acquire more accuracy system mathematical model, System model identification and verification of electro-hydraulic position servo system were carried out based on hardware-in-the-loop simulation environment of Real-time...
Electro-hydraulic servo system has nonlinearity and uncertain dynamics, so its theoretical mathematical model can't sufficiently represent the practical system. In order to acquire more accuracy system mathematical model, system model identification and verification of electro-hydraulic position servo system were carried out based on hardware-in-the-loop simulation environment of Real-time Workshop...
A hydraulic servo system has nonlinearity and uncertain dynamics, so its theoretical mathematical model can't sufficiently represent the practical system. The identification experiments were carried out in hardware-in-the-loop simulation environment and the identification model was acquired. In order to improve the tracking performance of the force servo system a new nonlinear hybrid controller was...
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