The displacement tracking performance of the electro-hydraulic servo actuator is critical for hydraulic active suspension control. To tackle problem slow time-varying parameters in existing dynamics model, a nonlinear adaptive back-stepping control (ABC) approach adopted. Simultaneously, ABC are difficult to configure, resulting poor effect. An enhanced particle swarm optimization (PSO) integra...

The electro-mechanical actuators are used in aerospace vehicle is used for attitude control of vehicle. Actuators used in aerospace vehicle require very accurate positioning accuracy, high dynamic requirements. Hence the actuator design in aerospace vehicle is very critical and plays very important role in total performance of the vehicle. The actuators are to be designed very compactly with hi...

By combining the disciplines of control design, condition monitoring and fault detection identification and accommodation, it should be possible to provide actuators that possess: consistent and tuneable closed-loop performance, a tolerance to sensor faults and the ability to detect actuator deterioration early. This will lead to improved reliability and availability of the actuator. This paper...

This article describes the composition and working principle of electro-hydraulic position servo control system, and establishes a systematic mathematical model. This article presents a controller which is based on Fuzzy neural networks for an electro-hydraulic speed governor. The design process of the RBF Fuzzy neural network control is introduced in detail. This controller which combines the ...

In the present work, we use an adaptive robust approach for fault detection and accommodation in electro-hydraulic systems. It is well known fact that any realistic model of a hydraulic system suffers from significant extent of uncertain nonlinearities and parametric uncertainties. An adaptive robust scheme is robust to such uncertainties and tracks the change in parameters reliably. Consequent...

Information technology and artificial intelligence technology hold great potential for enabling the distributed and intelligent fault diagnosis. Hydraulic motor is a common actuator having a high impact on the system performance. There has been significant work on fault detection and diagnosis for hydraulic motors. This paper presents a multi-agent framework for hydraulic motor fault diagnosis ...

This paper addresses the energy-inefficiency problem of four-degrees-of-freedom (4-DOF) hydraulic manipulators through redundancy resolution in robotic closed-loop controlled applications. Because conventional methods typically are local and have poor performance for resolving redundancy with respect to minimum hydraulic energy consumption, global energy-optimal redundancy resolution is propose...

Hydraulický lis so systémom LS pre modelovaniu procesov plastických deformácií At first, the paper describes destination of the presented hydraulic press. Next, the substance of load sensing (LS) systems’ operation was introduced, and electro-hydraulic system of this type, installed in laboratory hydraulic press, was described. The control and measurement circuit of the device was also describe...

The current trend is toward requiring undersea vehicles, manned and unmanned, remotely operated or autonomous, to perform ever longer, more demanding, and increasingly critical missions. Longer duration Unmanned Underwater Vehicle (UUV) missions will depend on highly reliable control actuation to ensure mission success, survivability of high value payloads, and plausible deniability. This paper...