Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
2.1
2.6
Journals
Machines
Special Issues
Advanced Control of Electro-Hydraulic Systems in Industrial Area
share announcement

Advanced Control of Electro-Hydraulic Systems in Industrial Area

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Industrial Systems".

Deadline for manuscript submissions: closed (15 November 2023) | Viewed by 13528

Special Issue Editors

Dr. Qun Chao

E-Mail Website
Guest Editor
State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: electro-hydraulic control; smart hydraulic components; predictive maintenance of hydraulic system
Dr. Ruqi Ding

E-Mail Website
Guest Editor
Key Laboratory Conveyance & Equipment, East China Jiaotong University, Nanchang 330013, China
Interests: electro-hydraulic system; mobile hydraulic; hydraulic robots; advanced control algorithm
Dr. Min Cheng

E-Mail Website
Guest Editor
School of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, China
Interests: electro-hydraulic control; hydraulic robots

Special Issue Information

Dear Colleagues,

Electro-hydraulic systems are the core transmission and control units for heavy-duty industrial equipment, including, but not limited to, construction machinery, agricultural machinery, hydraulic robots, airplanes, vehicles, manufacturing tools, and offshore machinery. However, the inner characteristics of hydraulic systems, including nonlinearity, time-varying, and uncertainty, always restrict the improvements of control performance under complex operating conditions. At the same time, the future trends for industrial equipment involve the increasing demands of efficiency, precision, intelligence, and safety, which put forward new challenges for the electro-hydraulic system. With the deep integration of the hydraulic and electronic, the performance of electro-hydraulic systems is increasingly dependent on their control algorithm.

This Special Issue aims to report and release high-impact research that expands our knowledge of the advanced control for electro-hydraulic systems towards the aforementioned industrial applications. In this Special Issue, original research articles and reviews on recent theoretical, simulation, and experimental works are all welcome. Topics of interest for publication include, but are not limited to:

  • Robust nonlinear control;
  • Adaptive control synthesis;
  • Intelligent control algorithms;
  • Coordinate control of multi-electro-hydraulic components;
  • Stability and vibration control;
  • Multi-variable decoupling control;
  • Energy saving, recovering, and regeneration control;
  • Active fault-tolerant control;
  • Advanced human–machine cooperative control of electro-hydraulic machinery;
  • Control strategies of complex electro-hydraulic components;
  • Applications of advanced electro-hydraulic control.

Dr. Qun Chao
Dr. Ruqi Ding
Dr. Min Cheng
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Machines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electro-hydraulic system
  • precision control
  • energy saving control
  • safety control
  • intelligent control
  • human-machine cooperative
  • industrial applications

Published Papers (7 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

19 pages, 9520 KiB  
Article
Design and Optimization of Hydropneumatic Suspension Simulation Test Bench with Electro-Hydraulic Proportional Control
by Zhibo Wu, Bin Jiao, Chuanmeng Sun, Yanbing Zhang and Heming Zhao
Machines 2023, 11(9), 907; https://doi.org/10.3390/machines11090907 - 13 Sep 2023
Viewed by 1013
Abstract
Available hydropneumatic suspension simulation test benches have insufficient loading accuracy and limited functionality rendering them unsuitable for performance testing of heavy vehicles with this type of suspension. Therefore, a multi-functional compound simulation test bench was designed that used an electro-hydraulic proportional control technique. [...] Read more.
Available hydropneumatic suspension simulation test benches have insufficient loading accuracy and limited functionality rendering them unsuitable for performance testing of heavy vehicles with this type of suspension. Therefore, a multi-functional compound simulation test bench was designed that used an electro-hydraulic proportional control technique. A mathematical model was established to describe the hydraulic loading system, and the transfer function of the system was derived. The gain and phase margins confirmed the stability of the system. A simulation model was established in the Simulink environment and step and sine signals of different frequencies were applied separately to analyze the dynamic characteristics of the system. The results showed that the system responded slowly and exhibited phase lag and signal distortion. The dynamic characteristics of the system were improved by incorporating an adaptive fuzzy PID controller. Simulation results showed that the response of the system to the step signal stabilized at the preset value within 0.3 s with no oscillation or overshoot. The improved system performed well in replicating the random vibrations of heavy vehicles operating on Class B and C roads. This confirmed that the system can satisfy the loading requirements of heavy vehicle hydropneumatic suspensions and can be used as a simulation test bench for such suspensions. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

23 pages, 9667 KiB  
Article
Analysis of Rigid-Flexible Coupling Characteristics of Pneumatic Modular Soft Joints with Variable Stiffness
by Siyuan Liu, Yuhang Bian, Chao Ai, Hongmei Sun, Yijie Deng, Zilong Chen, Xiaorui Chen and Jingtao Zhang
Machines 2023, 11(7), 714; https://doi.org/10.3390/machines11070714 - 5 Jul 2023
Viewed by 1187
Abstract
This paper proposes a new pneumatic modular joint to address the problem of balancing compliance and load-bearing capacity for soft robots. The joint possesses characteristics that allow for omnidirectional deformation and dynamically adjustable stiffness. In this study, mathematical models were established to describe [...] Read more.
This paper proposes a new pneumatic modular joint to address the problem of balancing compliance and load-bearing capacity for soft robots. The joint possesses characteristics that allow for omnidirectional deformation and dynamically adjustable stiffness. In this study, mathematical models were established to describe the deformation and stiffness variability of the joint. Corresponding relationships between gas pressure and deformation and magnetic field strength and module stiffness were derived through numerical analysis. Finite element simulations were conducted to investigate the changes in pressure and deformation under different stiffness conditions and the changes in magnetic field strength and joint stiffness under various deformation states. Finally, experimental validation was performed to verify the theoretical calculations and simulation results, demonstrating excellent coupling characteristics between stiffness and compliance for the proposed joint. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

14 pages, 5756 KiB  
Article
Design and Experiments of Electro-Hydrostatic Actuator for Wheel-Legged Robot with Fast Force Control Response
by Huipeng Zhao, Junjie Zhou, Sanxi Ma, Shanxiao Du, Hui Liu and Lijin Han
Machines 2023, 11(7), 685; https://doi.org/10.3390/machines11070685 - 29 Jun 2023
Cited by 5 | Viewed by 1317
Abstract
The wheel-legged robot combines the functions of wheeled vehicles and legged robots: high speed and high passability. However, the limited performance of existing joint actuators has always been the bottleneck in the actual applications of large wheel-legged robots. This paper proposed a highly [...] Read more.
The wheel-legged robot combines the functions of wheeled vehicles and legged robots: high speed and high passability. However, the limited performance of existing joint actuators has always been the bottleneck in the actual applications of large wheel-legged robots. This paper proposed a highly integrated electro-hydrostatic actuator (EHA) to enable high-dynamic performance in giant wheel-legged robots (>200 kg). A prototype with a high force-to-weight ratio was developed by integrating a micropump, a miniature spring accumulator, and a micro-symmetrical cylinder. The prototype achieves a large output force of more than 9400 N and a high force-to-weight ratio of more than 2518 N/kg. Compared with existing EHA-based robots, it has a higher force-to-weight ratio and can bear larger loads. A detailed EHA model was presented, and controllers were designed based on sliding mode control and PID methods to control the output position and force of the piston. The model’s accuracy is improved by identifying uncertain parameters such as friction and leakage coefficient. Finally, both simulations and experiments were carried out. The results verified the fast response of force control (step response within 50 ms, the force tracking control frequency about 6.7 Hz) and the developed EHA’s good potential for future large wheel-legged robots. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

17 pages, 4697 KiB  
Article
Research on PID Controller of Excavator Electro-Hydraulic System Based on Improved Differential Evolution
by Wei Ma, Shoulei Ma, Wenhua Qiao, Donghui Cao and Chenbo Yin
Machines 2023, 11(2), 143; https://doi.org/10.3390/machines11020143 - 20 Jan 2023
Cited by 4 | Viewed by 3068
Abstract
An electrical hydraulic control system (electro-hydraulic system) is thought to be a key component in excavator operation systems. Control methods with fixed parameters may not yield optimal system performances because a hydraulic system has various nonlinear uncertainties due to the leakage and compressibility [...] Read more.
An electrical hydraulic control system (electro-hydraulic system) is thought to be a key component in excavator operation systems. Control methods with fixed parameters may not yield optimal system performances because a hydraulic system has various nonlinear uncertainties due to the leakage and compressibility of the fluid medium. Hence, a novel PID controller based on improved differential evolution (IDE) is introduced to excavator electro-hydraulic systems for interconnected hydraulic systems. The proposed algorithm not only adjusts the PID parameters of the different working conditions but also adjusts the scaling factor and crossover probability. Then, the proposed PID controller based on IDE and the excavator bucket control system are modeled and simulated on the MATLAB simulation platform. The simulation results demonstrate that the proposed controller has better performance in settling time, rise time, and convergence speed compared to the PID controller based on standard differential evolution and the Ziegler–Nichols (ZN) PID controller with a novel object function. Eventually, the IDE-PID controller is assessed on a 23-ton excavator, and good transient behavior and trajectory accuracy are obtained in comparison to the SDE-PID controller. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

16 pages, 6236 KiB  
Article
Electromagnetic Characteristics Analysis and Structure Optimization of High-Speed Fuel Solenoid Valves
by Liu Yang, Tianxiong Gao, Xinming Du, Fugang Zhai, Chang Lu and Xiangdong Kong
Machines 2022, 10(10), 964; https://doi.org/10.3390/machines10100964 - 21 Oct 2022
Cited by 6 | Viewed by 2356
Abstract
High-speed fuel solenoid valves (HFSVs) are the key control elements of aero-engine vane regulators. A strong electromagnetic force generated from the HFSVs is essential to achieve precise control over timing and quantification for fuel supply. In this paper, the Taguchi method is adopted [...] Read more.
High-speed fuel solenoid valves (HFSVs) are the key control elements of aero-engine vane regulators. A strong electromagnetic force generated from the HFSVs is essential to achieve precise control over timing and quantification for fuel supply. In this paper, the Taguchi method is adopted to improve the HFSV’s static electromagnetic characteristics. First, an electromagnetic model of the HFSV was established and experiments were conducted to modify and validate the model. Effects of key structural factors on the static electromagnetic characteristics of the HFSV are then investigated via the finite element method (FEM). Based on the optimization, an HFSV prototype is finally manufactured and tested. The experiment results are in good agreement with those of the simulations. It provides a significant guideline for the manufacturing process of such HFSVs. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

15 pages, 18955 KiB  
Article
Comparison between Genetic Programming and Dynamic Models for Compact Electrohydraulic Actuators
by Hamid Bamshad, Seongwon Jang, Hyemi Jeong, Jaesung Lee and Hyunseok Yang
Machines 2022, 10(10), 961; https://doi.org/10.3390/machines10100961 - 21 Oct 2022
Viewed by 1568
Abstract
A compact electrohydraulic actuator (C-EHA) is an innovative hydraulic system with a wide range of applications, particularly in automation, robotics, and aerospace. The actuator provides the benefits of hydraulics without the expense and space requirements of full-sized hydraulic systems and in a much [...] Read more.
A compact electrohydraulic actuator (C-EHA) is an innovative hydraulic system with a wide range of applications, particularly in automation, robotics, and aerospace. The actuator provides the benefits of hydraulics without the expense and space requirements of full-sized hydraulic systems and in a much cleaner manner. However, this actuator is associated with some disadvantages, such as a high level of nonlinearity, uncertainty, and a lack of studies. The development of a robust controller requires a thorough understanding of the system behavior as well as an accurate dynamic model of the system; however, finding an accurate dynamic model of a system is not always straightforward, and it is considered a significant challenge for engineers, particularly for a C-EHA because the critical parameters inside cannot be accessed. Our research aims to evaluate and confirm the ability of genetic programming (GP) to model a nonlinear system for a C-EHA. In our paper, we present and develop a GP model for the C-EHA system. Furthermore, our study presents a dynamic model of the system for comparison with the GP model. As a result, by using this actuator in the 1-DOF arm system and conducting experiments, we confirmed that the GP model has a better performance with less positional error compared with the proposed dynamic model. The model can be used to conduct further studies, such as designing controllers or system simulations. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

14 pages, 7642 KiB  
Article
High-Performance Control Strategy for Low-Speed Torque of IPMSM in Electric Construction Machinery
by Zhongshen Li, Qihuai Chen, Yongjie Chen, Tianliang Lin, Haoling Ren and Wen Gong
Machines 2022, 10(9), 810; https://doi.org/10.3390/machines10090810 - 15 Sep 2022
Cited by 1 | Viewed by 1207
Abstract
Electric construction machinery with zero emission and high efficiency is considered to be a main development trend. An electric motor (EM) in electric construction machinery often needs to work at low speed or even in stalling conditions with large torque value and high [...] Read more.
Electric construction machinery with zero emission and high efficiency is considered to be a main development trend. An electric motor (EM) in electric construction machinery often needs to work at low speed or even in stalling conditions with large torque value and high work efficiency. In this paper, based on vector control of the maximum torque per ampere (MTPA) of an internal permanent magnet synchronous motor (IPMSM), a voltage and current composite observation algorithm was studied to improve IPMSM control performance at low speed. By establishing the observer model, the amplitude limited compensation for the voltage flux observation method was used to observe the EM stator flux. After being combined with the current observation method and the stator current obtained by coordinate transformation, the EM parameters in real-time can be identified for MTPA. Experimental research was carried out. The results show that the algorithm improved the speed control characteristic and output torque per unit current of the EM under low-speed working conditions. Full article
(This article belongs to the Special Issue Advanced Control of Electro-Hydraulic Systems in Industrial Area)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-7
Back to TopTop