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Nonlinear optimal control of electro-hydraulic actuators
IFAC Journal of Systems and Control, 2021Abstract A nonlinear optimal (H-infinity) control approach is proposed for electro-hydraulic actuators. Control of electrohydraulic actuators is a non-trivial problem because of the nonlinearities and underactuation in their dynamics. The article’s approach relies first on approximate linearization of the state–space model of the electrohydraulic ...
Rigatos, G. +3 more
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IEEE Transactions on Automation Science and Engineering
Requirements of the system dynamics and unknown disturbance and uncertainty suppression bring certain challenges in developing advanced control algorithms for electro-hydraulic actuators (EHAs).
H-V-A Truong +4 more
semanticscholar +1 more source
Requirements of the system dynamics and unknown disturbance and uncertainty suppression bring certain challenges in developing advanced control algorithms for electro-hydraulic actuators (EHAs).
H-V-A Truong +4 more
semanticscholar +1 more source
International Journal of Robust and Nonlinear Control, 2022
In this paper, a novel robust backstepping control strategy is introduced to achieve high‐accuracy tracking performance for electro‐hydraulic servo systems (EHSSs) without velocity information in the presence of uncertainties and disturbances.
Manh Hung Nguyen, Hoang Vu Dao, K. Ahn
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In this paper, a novel robust backstepping control strategy is introduced to achieve high‐accuracy tracking performance for electro‐hydraulic servo systems (EHSSs) without velocity information in the presence of uncertainties and disturbances.
Manh Hung Nguyen, Hoang Vu Dao, K. Ahn
semanticscholar +1 more source
ISA transactions, 2022
The electro-hydraulic servo system (EHSS) drives the hydraulic quadruped robot, which has the advantages such as high load capacity, fast response velocity, and powerful motion ability.
Qixin Zhu +5 more
semanticscholar +1 more source
The electro-hydraulic servo system (EHSS) drives the hydraulic quadruped robot, which has the advantages such as high load capacity, fast response velocity, and powerful motion ability.
Qixin Zhu +5 more
semanticscholar +1 more source
Applications of electro-hydraulics actuators
SoutheastCon 2016, 2016Electro-hydraulic systems can be used in robust robotics systems that have to carry heavier loads efficiently. Electrical drives have proven to be reliable and easy to control, but they may have problems when it comes to holding a position under load for a long period of time.
Vukica Jovanovic +3 more
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Electro-hydraulic Servomechanisms†
Journal of Electronics and Control, 1958Abstract The additional complications of hydraulic elements have not prevented servomechanism engineers from resorting frequently in recent years to the use of high-pressure hydraulic motors in place of electric motors. The reasons for this trend are examined in relation to the performance demanded in many modern servomechanisms, particularly these in ...
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Improved electro-hydraulic trainer stations
2011 Louisville, Kentucky, August 7 - August 10, 2011, 2011Parker Hannifin’s IQAN electro-hydraulic control system was installed on four hydraulic trainers to be used for hands-on lab instruction. Each Parker IQAN system includes a MD3 display/controller, XA2 expansion interface module, and ICL joystick. The updated trainers will be used to teach students about mobile Controller Area Network (CAN) systems ...
null Dennis R Buckmaster +1 more
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Electro-hydraulic actuator trajectory tracking
Proceedings of the 2004 American Control Conference, 2004This paper combines block control, sliding mode control and integral control techniques to design a controller, which is able to force an electrohydraulic actuator driven by a servovalve to track a given chaotic reference trajectory. This approach enables to compensate the inherent nonlinearities of the actuator and to reject external constant ...
M.A. Avila, A.G. Loukianov, E.N. Sanchez
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Electro-hydraulic dipole vibrator
The Journal of the Acoustical Society of America, 1993A downhole seismic shear wave source is used to generate seismic shear waves a downhole environment. At least one double headed piston rod with a third piston on the center of the rod slides laterally in the downhole tool. Each end piston head is connected to a rolling diaphragm that is secured at its edges around the periphery of the piston receiving ...
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IEEE Transactions on Automation Science and Engineering
In this paper, an artificial intelligence enabled energy-saving strategy (AIESS) is proposed to achieve high energy efficiency of hydraulic systems with a speed and displacement variable pump (SDVP). The AIESS, which integrates extreme gradient boosting (
Rui Jin +6 more
semanticscholar +1 more source
In this paper, an artificial intelligence enabled energy-saving strategy (AIESS) is proposed to achieve high energy efficiency of hydraulic systems with a speed and displacement variable pump (SDVP). The AIESS, which integrates extreme gradient boosting (
Rui Jin +6 more
semanticscholar +1 more source