Recently the development of an Electro-Hydrostatic Actuator(EHA) is progressed as a part of a research for energy saving. EHA is usually composed of a direct diven pump from an electric motor and is available to control cylinder displacement or veloci...
Recently the development of an Electro-Hydrostatic Actuator(EHA) is progressed as a part of a research for energy saving. EHA is usually composed of a direct diven pump from an electric motor and is available to control cylinder displacement or velocity with high efficiency. In addition, it has the merritt of compactness, minimum leakage and the availability of the decentralized control. In this study, EHA system is designed to decrease the path following error, manufactured for test. The method of linearization provided in AMESim software was used to derive the model of EHA system. The derived model through this modeling process is applied to design the PI-D controller to overcome the disturbance effectively. The effectiveness of this controller is verified by test.