Hydraulic Switching Control Supplementing Speed Variable Hydraulic Drives

Mathematical Modelling of a Hydraulic Accumulator for Hydraulic Hybrid Drives

Control of Flexible Robots with Prismatic Joints and Hydraulic Drives"

The design and control of R. L. Kress Oak Ridge National Laboratory Robotics and Process Systems Division P. 0. Box 2008 Oak Ridge, Tennessee 37831-6426

Structural Analysis in Control Systems Design of Hydraulic Drives

The design of hydraulic control systems is a complex and time-consuming task that, at the moment, cannot be automated completely. Nevertheless, important design subtasks like simulation or control concept selection can be efficiently supported by a computer. Prerequisite for a successful support is a well-founded analysis of a hydraulic system’s structure. The paper in hand contributes right he...

Research on Variable Domain Electro - hydraulic Proportional Valve Control Technology

As the control system of the ship's crane is nonlinear , time-varying and large inertia, the traditional way to control is difficult to achieve control requirements. The text have the deck crane’ electro-hydraulic proportional valve as the research object, use the way of optimizing input’s fuzzy domain which called variable domain fuzzy PID, to solve the weakness of traditional control and brin...

Variable structure methods in hydraulic servo systems control

In the general framework of hydraulic servo systems, this paper addresses the problem of position control in the presence of important friction nonlinearities. The accent falls on the variable structure methodology, as we try to use its intrinsic robustness properties. Several friction observers, including the one based on a variable structure approach, were incorporated and tested in an accele...