Results 11 to 20 of about 12,984 (228)

Adaptive Dynamic Surface Control for Active Suspension With Electro-Hydraulic Actuator Parameter Uncertainty and External Disturbance

open access: yesIEEE Access, 2020
In this paper, a new adaptive dynamic surface control strategy is proposed to deal with the uncertainty parameters of electro-hydraulic actuator and unknown external disturbances of vehicle active suspension system.
Shuang Liu   +3 more
doaj   +3 more sources

Development and Control of an Electro-Hydraulic Actuator System for an Exoskeleton Robot

open access: yesApplied Sciences, 2019
Exoskeleton robots have been developed in various fields and are divided into electric and hydraulic exoskeletons according to the actuator type. In the case of hydraulic robots, because a unidirectional pump is applied, there are limitations to the ...
Dongyoung Lee   +3 more
doaj   +3 more sources

Nonlinearities in Control Description and Design of an Electro Hydraulic Actuator for Flexible Nozzle Thrust Vector Control

open access: yesActuators, 2018
This paper presents all the significant nonlinearities that exist in the description of an electro hydraulic actuator for flexible nozzle thrust vector control. Starting from practical possibilities of the theory of a nonlinear system (which are based on
Dragan Nauparac   +2 more
doaj   +1 more source

Active Disturbance Rejection Position Synchronous Control of Dual-Hydraulic Actuators with Unknown Dead-Zones

open access: yesSensors, 2020
In this paper, an integrated control strategy of position synchronization control for dual-electro-hydraulic actuators with unknown dead-zones is proposed. The unified control scheme consists of two parts: One is adaptive dead-zone inverse controllers of
Lixin Wang   +4 more
doaj   +1 more source

Energy and Operation Characteristics of Electric Excavator With Innovative Hydraulic-Electric Dual Power Drive Boom System

open access: yesIEEE Access, 2023
In the existing electric excavators, the energy efficiency of the hydraulic system is less than 30% due to a large amount of throttling loss and waste of potential energy.
Yunxiao Hao   +5 more
doaj   +1 more source

Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators

open access: yesEnergies, 2021
Self-contained hydraulic cylinders have gained popularity in the recent years but have not been implemented for high power articulated hydraulic manipulators.
Konrad Johan Jensen   +2 more
doaj   +1 more source

Proportional–Integral–Derivative Controller Design Using an Advanced Lévy-Flight Salp Swarm Algorithm for Hydraulic Systems

open access: yesEnergies, 2020
To improve the control ability of proportional−integral−derivative (PID) controllers and increase the stability of force actuator systems, this paper introduces a PID controller based on the self-growing lévy-flight salp swarm algorithm (
Yuqi Fan   +3 more
doaj   +1 more source

Design and Performance Evaluation of an Electro-Hydraulic Camless Engine Valve Actuator for Future Vehicle Applications

open access: yesSensors, 2017
This paper details the new design and dynamic simulation of an electro-hydraulic camless engine valve actuator (EH-CEVA) and experimental verification with lift position sensors.
Kanghyun Nam   +3 more
doaj   +1 more source

Development of Flexible Electro-Hydraulic Spherical Actuator

open access: yesJournal of Robotics and Mechatronics, 2022
Voluntary rehabilitation at home helps to prevent the joint contracture after medical treatment. Our previous studies concerned a low-cost portable rehabilitation device using a flexible spherical pneumatic actuator as a passive exercise device. However, the device requires a bulky compressor to drive it.
Wataru Kobayashi   +4 more
openaire   +1 more source

DESIGN METHOD FOR ELECTRO-HYDRAULIC CONVERTERSOF AIRCRAFT ENGINES

open access: yesАвіаційно-космічна техніка та технологія, 2019
The main trends in the use of aircraft engines actuators, that convert electrical commands into mechanical and hydraulic, are presented. Examples of the use of modern engine control systems are described, in which hydraulic cylinders are used to move the
Евгений Александрович Кононыхин   +1 more
doaj   +1 more source

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