A high-precision motion control strategy for valve-controlled cylinders

LIU Guoqing; WANG Jianxin; Ping Zilong; Zhang Xiaoming

doi:10.11993/j.issn.2096-3920.2025-0110

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LIU Guoqing, WANG Jianxin, Ping Zilong, Zhang Xiaoming. A high-precision motion control strategy for valve-controlled cylinders[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2025-0110

Citation:

LIU Guoqing, WANG Jianxin, Ping Zilong, Zhang Xiaoming. A high-precision motion control strategy for valve-controlled cylinders[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2025-0110

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A high-precision motion control strategy for valve-controlled cylinders

doi: 10.11993/j.issn.2096-3920.2025-0110

1.
The 705 Research Institute, China Shipbuilding Industry Corporation Limited, Kunming 650106, China
2.
The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China

Received Date: 2025-08-22
Accepted Date: 2025-10-30
Rev Recd Date: 2025-10-27

Available Online: 2026-03-27

Abstract

Abstract

As a key actuator in electro-hydraulic servo systems, the motion precision of the valve-controlled cylinder is pivotal to the system's stability, responsiveness, and final positioning accuracy. Practical applications, however, are plagued by issues like nonlinear friction, parametric uncertainty, and external disturbances, which challenge conventional control methods. proportional-integral-derivative(PID) control exhibits poor robustness, while sliding mode control induces detrimental chattering. To overcome these drawbacks, an advanced adaptive robust control strategy featuring fast dynamic compensation and nonlinear robust feedback is proposed in this work. Comparative simulation results confirm the superior performance of the proposed controller over PID and sliding mode control(SMC) in tracking precision and robustness.
- valve-controlled cylinder,
- high precision,
- motion control,
- adaptive robust control

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References(13)

References

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