抄録
Electro-hydraulic servo system has been used in many industrial applications for high power in size, high response and fine repeatability. But, load variation causes a degradation of control characteristic. Here, we introduce a scheduling parameter which is a function of the load. Then, apply it for the controller design in order to maintain a steady control performance under the comparatively large load variation. In addition to that, we take a time-delay into consideration as a modeling error so that achieve a desirable following behavior. The usefulness of this design approach is confirmed by the experiment.
