Cited by 18Hydraulic and Pneumatic SystemsStability and Control of Uncertain SystemsAdaptive Control of Nonlinear Systems

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Accurate Finite-Time Motion Control of Hydraulic Actuators With Event-Triggered Input

Chen, Jixiang, Du, Xian, Lyu, Litong, Fei, Zhongyang, Sun, Xi-Ming·2024·IEEE Transactions on Automation Science and Engineering

Abstract

Generally, asymptotic tracking motion control algorithm can ensure the stability of the closed-loop system, but hardly exploits the potential system performance. As an alternative, a high-accuracy control method with finite-time regulation is studied in this paper for hydraulic actuators pertaining to complex unknowns and limited communication bandwidth. During system modeling, a hydraulic actuator system is expressed in the Brunovsky form with a lumped disturbance term, instead of the conventional semi-strict-feedback form, such that the tracking control can be transformed to the stabilizing problem. As a result, the homogeneity-based finite-time motion controller enables to be recursively constructed. This paper develops a finite-time observer to simultaneously estimate the partial unknown state and the lumped disturbance, with a short time, thereby improving the disturbance rejection and transient response. Moreover, a novel threshold triggering mechanism is proposed to alleviate the limited communication resources and ensure the relatively small amplitude fluctuation of control inputs via a minimum function. The stability and finite-time convergence of the closed-loop system are all proved. Meanwhile, the Zeno behavior is avoided. Finally, the proposed control scheme is tested and verified on the aero-engine Hardware-in-the-loop (HIL) test-rig with hydraulic actuators.Note to Practitioners—This paper displays how to utilize the event-triggered communication protocol and finite-time control for hydraulic actuators in the networked control systems. The designed event-triggered mechanism saves more communication resources while ensuring the satisfied motion control effect. Moreover, the internal and external uncertainties are all tackled with the developed finite-time observer. Experimental results verify that the proposed schemes are easily implemented, but with the plentiful performance improvements of motion control, disturbance attenuation (i.e., finite-time output tracking and unknown estimation), and the capability on saving network resources. In addition, the proposed event-driven control scheme is also feasible for other mechatronic systems, e.g., linear motor, DC motor and marine surface vehicles.

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Crossref · 10.1109/tase.2023.3319348

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Metadata

Authors
Chen, J., Du, X., Lyu, L., Fei, Z., & Sun, X.-M.
Affiliations
  • Dalian University of Technology (CN)
  • Shijiazhuang Tiedao University (CN)
Venue
IEEE Transactions on Automation Science and Engineering
Published
2024-10
Volume
21
Issue
4
Pages
5826-5836
ISSN
  • 1545-5955 (ISSN-L)
  • 1558-3783
OpenAlex
W4387350644
Cited by
18
References
42
Citations by year
2026: 4 · 2025: 9 · 2024: 5
FWCI
1.77
Type
journal article
Language
en
Open access
closed
Locations
IEEE Transactions on Automation Science and Engineering (publishedVersion)
Funders
National Natural Science Foundation of China (52105065, 61890924)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Hydraulic and Pneumatic Systems
  • Physical Sciences › Engineering › Control and Systems Engineering › Stability and Control of Uncertain Systems
  • Physical Sciences › Engineering › Control and Systems Engineering › Adaptive Control of Nonlinear Systems
Keywords
hydraulic actuators, event-triggered control, finite-time control, finite-time observer, lumped disturbance estimation, disturbance rejection, networked control systems, communication resource saving, Zeno behavior avoidance, motion tracking control

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