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Saturated RISE Control of Hydraulic Servo System with Modeling Uncertainties.

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Title: Saturated RISE Control of Hydraulic Servo System with Modeling Uncertainties.
Authors: Dongjie Bai1 b18339631260@163.com, Zhenle Dong2 dong_zhenle@163.com, Pengxiang Zhang1 1767858772@qq.com, Zhigang Zhou3 hnmczzg@163.com, Siyuan Pan4 499017141@qq.com
Source: Engineering Letters. Jun2025, Vol. 33 Issue 6, p2128-2133. 6p.
Subjects: Hydraulic control systems, Tangent function, Dynamic pressure, Hyperbolic functions, Hydraulic models, Valves
Abstract: The demand for high-accuracy hydraulic servo system in industry and national defense is becoming increasingly urgent. This paper focuses on the high accuracy motion tracking control of hydraulic servo system with input saturation. Firstly, nonlinear mathematical model of the valve-controlled hydraulic servo system is established, which contains the load dynamic, the pressure dynamic and the flow equation. Secondly, the state-space-equation of hydraulic servo system is constructed in integrator form to facilitate controller derivation, and a saturated controller based on RISE (robust integral of the sign of error) method is designed, which includes a model compensation term based on desired trajectory and a nonlinear RISE term in the form of hyperbolic tangent function. Then, through rigorous Lyapunov analysis, it is proven that the proposed controller can theoretically achieve asymptotic stability, while ensuring that the amplitude of control input meets the saturation limit requirements. Finally, the effectiveness of the proposed controller approach is verified through simulation of two comparative controllers under two desired trajectories with sudden disturbance. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Saturated RISE Control of Hydraulic Servo System with Modeling Uncertainties.
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  Data: <searchLink fieldCode="AR" term="%22Dongjie+Bai%22">Dongjie Bai</searchLink><relatesTo>1</relatesTo><i> b18339631260@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhenle+Dong%22">Zhenle Dong</searchLink><relatesTo>2</relatesTo><i> dong_zhenle@163.com</i><br /><searchLink fieldCode="AR" term="%22Pengxiang+Zhang%22">Pengxiang Zhang</searchLink><relatesTo>1</relatesTo><i> 1767858772@qq.com</i><br /><searchLink fieldCode="AR" term="%22Zhigang+Zhou%22">Zhigang Zhou</searchLink><relatesTo>3</relatesTo><i> hnmczzg@163.com</i><br /><searchLink fieldCode="AR" term="%22Siyuan+Pan%22">Siyuan Pan</searchLink><relatesTo>4</relatesTo><i> 499017141@qq.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Letters%22">Engineering Letters</searchLink>. Jun2025, Vol. 33 Issue 6, p2128-2133. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Hydraulic+control+systems%22">Hydraulic control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Tangent+function%22">Tangent function</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+pressure%22">Dynamic pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Hyperbolic+functions%22">Hyperbolic functions</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+models%22">Hydraulic models</searchLink><br /><searchLink fieldCode="DE" term="%22Valves%22">Valves</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The demand for high-accuracy hydraulic servo system in industry and national defense is becoming increasingly urgent. This paper focuses on the high accuracy motion tracking control of hydraulic servo system with input saturation. Firstly, nonlinear mathematical model of the valve-controlled hydraulic servo system is established, which contains the load dynamic, the pressure dynamic and the flow equation. Secondly, the state-space-equation of hydraulic servo system is constructed in integrator form to facilitate controller derivation, and a saturated controller based on RISE (robust integral of the sign of error) method is designed, which includes a model compensation term based on desired trajectory and a nonlinear RISE term in the form of hyperbolic tangent function. Then, through rigorous Lyapunov analysis, it is proven that the proposed controller can theoretically achieve asymptotic stability, while ensuring that the amplitude of control input meets the saturation limit requirements. Finally, the effectiveness of the proposed controller approach is verified through simulation of two comparative controllers under two desired trajectories with sudden disturbance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Letters is the property of International Association of Engineers (IAENG) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 2128
    Subjects:
      – SubjectFull: Hydraulic control systems
        Type: general
      – SubjectFull: Tangent function
        Type: general
      – SubjectFull: Dynamic pressure
        Type: general
      – SubjectFull: Hyperbolic functions
        Type: general
      – SubjectFull: Hydraulic models
        Type: general
      – SubjectFull: Valves
        Type: general
    Titles:
      – TitleFull: Saturated RISE Control of Hydraulic Servo System with Modeling Uncertainties.
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            NameFull: Dongjie Bai
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            NameFull: Zhenle Dong
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            NameFull: Pengxiang Zhang
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            NameFull: Zhigang Zhou
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            NameFull: Siyuan Pan
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            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
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            – TitleFull: Engineering Letters
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