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Passivity based adaptive control of a two chamber single rod hydraulic actuator
2012 American Control Conference (ACC), 2012A novel nonlinear function parameterization model was proposed for nonlinear adaptive controller design. This approach re-parameterizes the nonlinear function with unknown parameters linearly, which simplifies the adaptive controller design significantly.
null Meng Wang, P. Y. Li
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Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2023
This article presents a novel harmonic and synchronous compound control scheme based on the dual-valve parallel structure for controlling a single-rod electro-hydraulic actuator with high-precision control and large-flow requirements. Harmonic and synchronous compound control consists of an adaptive robust control layer and a control law allocation ...
Tianzhu Wang +4 more
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This article presents a novel harmonic and synchronous compound control scheme based on the dual-valve parallel structure for controlling a single-rod electro-hydraulic actuator with high-precision control and large-flow requirements. Harmonic and synchronous compound control consists of an adaptive robust control layer and a control law allocation ...
Tianzhu Wang +4 more
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Dynamic surface control of the single-rod pneumatic actuator with disturbance rejection
2019 IEEE 8th International Conference on Fluid Power and Mechatronics (FPM), 2019In this paper, An adaptive dynamic surface controller (ADSC) is developed for the pneumatic servo systems with the single-rod pneumatic actuator. The ADSC scheme contains a nonlinear feedback part, a parametric adaption part, and a disturbance observer part in the parallel structure. The nonlinear feedback part is synthesized by the backstepping method,
Deyuan Meng +5 more
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Sliding mode control based on backstepping method for electro-hydraulic single-rod actuator
2015 IEEE International Conference on Information and Automation, 2015This paper presents a sliding mode control method to track desired position for an electro-hydraulic single-rod actuator of a projectile transfer arm. Sliding mode control is used to compensate the nonlinearity and parameters uncertainty of electro-hydraulic system and its control output is the load pressure. A backstepping method is applied to achieve
Lingfei Tian +3 more
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Motion Control of a Nonlinear Single-Rod Hydraulic Actuator via Feedback Linearization
Volume 10: Mechanical Systems and Control, Parts A and B, 2009Hydraulic systems are extensively used in many engineering fields where a high degree of both accuracy and performance are required. Due to the highly nonlinear dynamics of hydraulic systems, applying high performance closed-loop controllers is complicated.
Hamed Moradi +3 more
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Feedback Linearization of the Double- and Single-Rod Hydraulic Servo Actuators
2006 IEEE International Conference on Automation, Quality and Testing, Robotics, 2006This paper presents the theoretical fundaments and the numerical simulation for the linearization of the nonlinear model of the double (single)-rod hydraulic actuator through feedback. There are presented the hydraulic model, the equivalent hydraulic model, the proposed nonlinear compensator and finally the simulation results.
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A Lyapunov Stable Controller for Bilateral Haptic Teleoperation of Single-Rod Hydraulic Actuators
Journal of Dynamic Systems, Measurement, and Control, 2017A Lyapunov stable control scheme is designed and implemented for bilateral haptic teleoperation of a single-rod hydraulic actuator. The proposed controller is capable of reducing position errors at master and slave sides, as well as perceiving the interaction force between the actuator and the task environment without a need for direct measurement of ...
Vikram Banthia +3 more
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International Journal of Precision Engineering and Manufacturing, 2012
Typical hydraulic system, although it is widely applied in industry because of its high energy density, its actual operational efficiency is only 23%–25% owing to very high energy losses, such as pressure loss and fluid dynamics loss, caused by the hydraulic system.
Joo-Young Oh +4 more
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Typical hydraulic system, although it is widely applied in industry because of its high energy density, its actual operational efficiency is only 23%–25% owing to very high energy losses, such as pressure loss and fluid dynamics loss, caused by the hydraulic system.
Joo-Young Oh +4 more
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Adaptive robust motion control of single-rod hydraulic actuators: Theory and experiments
Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251), 1999High performance robust motion control of single-rod hydraulic actuators is considered. In contrast to the double-rod hydraulic actuators studied previously, the two chambers of a single-rod hydraulic actuator have different areas. As a result, the dynamic equations describing the pressure changes in the two chambers cannot be combined into a single ...
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Nonlinear cascade control of single-rod pneumatic actuator based on an extended disturbance observer
Journal of Central South University, 2019Precise position tracking control of the single-rod pneumatic actuator is considered and a nonlinear cascade controller is developed. The proposed controller comprises an extended disturbance observer (EDOB) and a nonlinear robust control law synthesized by the backstepping method. The EDOB is designed to estimate not only the influence of disturbances
Ai-min Li +3 more
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