PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system

It is well known that the control engineering applications are widely implemented in the industrial fields through the assistance of the Electro-Hydraulic Actuator (EHA) system. The EHA system is commonly exposed to the parameter variations, disturbances, and uncertainties, which are caused by the c...

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Main Author: Chong, Chee Soon
Format: Thesis
Language:English
English
Published: 2017
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Online Access:http://eprints.utem.edu.my/id/eprint/20558/1/PSO-Tuned%20Pid%20Sliding%20Surface%20Of%20Sliding%20Mode%20Control%20For%20An%20Electro-Hydraulic%20Actuator%20System.pdf
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institution Universiti Teknikal Malaysia Melaka
collection UTeM Repository
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advisor Ghazali, Rozaimi
topic T Technology (General)
TJ Mechanical engineering and machinery
spellingShingle T Technology (General)
TJ Mechanical engineering and machinery
Chong, Chee Soon
PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
description It is well known that the control engineering applications are widely implemented in the industrial fields through the assistance of the Electro-Hydraulic Actuator (EHA) system. The EHA system is commonly exposed to the parameter variations, disturbances, and uncertainties, which are caused by the changes in the operating conditions including supply pressure, total moving mass, and friction. Thus, due to the changes and uncertain operating conditions, an optimization to the system’s controller is necessary in order to obtain a more robust system performance. This thesis presents the optimization on the Proportional-Integral-Derivative (PID) sliding surface of the Sliding Mode Control (SMC) scheme by using Particle Swarm Optimization (PSO) algorithm, applied to EHA system particularly for positioning tracking control. The EHA system is modelled according to the theories of the physical law, which taking into account the effect of nonlinearities, uncertainties, and disturbances occurred in the system. A robust control strategy is then formulated based on the control laws of the SMC, where the design of the sliding surface is integrated with the PID controller. The proposed control strategy is designed based on the EHA system that is subjected to the nonlinear characteristics and model uncertainties. Then, the PSO, which is based on the inspiration of the swarming behaviour has been utilized to seek for the optimum PID sliding surface parameters. The conventional tuning technique for the PID controller, which is known as Ziegler-Nichols (ZN) has been used to obtain the initial value of the PID sliding surface. Finally, the comparison has been made by applying the obtained parameters through the ZN and PSO tuning technique to the conventional PID controller and the PID sliding surface of the SMC. The findings indicate that the proposed robust SMC with PSOPID sliding surface is preserved to ensure the actuator robust and stable under the variation of the system operating condition, which produce 26% improvement in terms of robustness characteristic that gave a better positioning tracking performance and reduced the controller effort as compared to the conventional PID controller.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Chong, Chee Soon
author_facet Chong, Chee Soon
author_sort Chong, Chee Soon
title PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
title_short PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
title_full PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
title_fullStr PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
title_full_unstemmed PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
title_sort pso-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system
granting_institution Universiti Teknikal Malaysia Melaka
granting_department Faculty Of Electrical Engineering
publishDate 2017
url http://eprints.utem.edu.my/id/eprint/20558/1/PSO-Tuned%20Pid%20Sliding%20Surface%20Of%20Sliding%20Mode%20Control%20For%20An%20Electro-Hydraulic%20Actuator%20System.pdf
http://eprints.utem.edu.my/id/eprint/20558/2/PSO-tuned%20pid%20sliding%20surface%20of%20sliding%20mode%20control%20for%20an%20electro-hydraulic%20actuator%20system.pdf
_version_ 1776103108918640640
spelling my-utem-ep.205582022-12-29T16:40:47Z PSO-tuned pid sliding surface of sliding mode control for an electro-hydraulic actuator system 2017 Chong, Chee Soon T Technology (General) TJ Mechanical engineering and machinery It is well known that the control engineering applications are widely implemented in the industrial fields through the assistance of the Electro-Hydraulic Actuator (EHA) system. The EHA system is commonly exposed to the parameter variations, disturbances, and uncertainties, which are caused by the changes in the operating conditions including supply pressure, total moving mass, and friction. Thus, due to the changes and uncertain operating conditions, an optimization to the system’s controller is necessary in order to obtain a more robust system performance. This thesis presents the optimization on the Proportional-Integral-Derivative (PID) sliding surface of the Sliding Mode Control (SMC) scheme by using Particle Swarm Optimization (PSO) algorithm, applied to EHA system particularly for positioning tracking control. The EHA system is modelled according to the theories of the physical law, which taking into account the effect of nonlinearities, uncertainties, and disturbances occurred in the system. A robust control strategy is then formulated based on the control laws of the SMC, where the design of the sliding surface is integrated with the PID controller. The proposed control strategy is designed based on the EHA system that is subjected to the nonlinear characteristics and model uncertainties. Then, the PSO, which is based on the inspiration of the swarming behaviour has been utilized to seek for the optimum PID sliding surface parameters. The conventional tuning technique for the PID controller, which is known as Ziegler-Nichols (ZN) has been used to obtain the initial value of the PID sliding surface. Finally, the comparison has been made by applying the obtained parameters through the ZN and PSO tuning technique to the conventional PID controller and the PID sliding surface of the SMC. The findings indicate that the proposed robust SMC with PSOPID sliding surface is preserved to ensure the actuator robust and stable under the variation of the system operating condition, which produce 26% improvement in terms of robustness characteristic that gave a better positioning tracking performance and reduced the controller effort as compared to the conventional PID controller. 2017 Thesis http://eprints.utem.edu.my/id/eprint/20558/ http://eprints.utem.edu.my/id/eprint/20558/1/PSO-Tuned%20Pid%20Sliding%20Surface%20Of%20Sliding%20Mode%20Control%20For%20An%20Electro-Hydraulic%20Actuator%20System.pdf text en public http://eprints.utem.edu.my/id/eprint/20558/2/PSO-tuned%20pid%20sliding%20surface%20of%20sliding%20mode%20control%20for%20an%20electro-hydraulic%20actuator%20system.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=106350 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Electrical Engineering Ghazali, Rozaimi 1. Ab Wahab, M. N., Nefti-Meziani, S. and Atyabi, A., 2015. A Comprehensive Review of Swarm Optimization Algorithms. PLoS ONE, 10(5), pp. 1–36. 2. Adnan, R., Tajjudin, M., Ishak, N., Ismail, H. and Rahiman, M. H. F., 2011. Self-tuning Fuzzy PID Controller for Electro-hydraulic Cylinder. In 2011 IEEE 7th International Colloquium on Signal Processing and Its Applications, CSPA 2011, pp. 395–398. 3. Agarwal, S., Mathur, S., Mishra, P., Kumar, V. and Rana, K. P. S., 2015. Online Tuning of Fractional Order PI Controller using Particle Swarm Optimization. In International Conference on Computing, Communication & Automation (ICCCA), pp. 1026–1031. 4. Ahmadnezhad, M. and Soltanpour, M., 2015. Tracking Performance Evaluation of Robust Back-Stepping Control Design for a Nonlinear Electrohydraulic Servo System. International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 9(7), pp. 1208–1214. 5. Ahn, K. K., Ngoc, D., Nam, C. and Jin, M., 2014. Adaptive Backstepping Control of an Electrohydraulic Actuator. IEEE/ASME Transactions on Mechatronics, 19(3), pp. 987–995. 6. Altintas, Y. and Lane, A. J., 1997. Design of an Electro-hydraulic CNC Press Brake. 7. International Journal of Machine Tools and Manufacture, 37(1), pp. 45–59. 8. Ang, K. H., Chong, G. and Li, Y., 2005. PID Control System Analysis, Design, and Technology. IEEE Transactions on Control Systems Technology, 13(4), pp. 559–576. 9. Atherton, D., 2011. An Introduction to Nonlinearity in Control Systems. Ventus Publishing Aps., 2011. 10. Ayalew, B., 2008. Improved Inner-loop Decentralised Control of Electrohydraulic Actuators in Road Simulation. International Journal of Vehicle Systems Modelling and Testing, 3(1), pp. 94–113. 11. Ayalew, B., 2010. Two Equivalent Control Structures for an Electrohydraulic Actuator. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 224(5), pp. 599–609. 12. Bandyopadhyay, B., Deepak, F. and Kim, K.-S., 2009. Sliding Mode Control using Novel Sliding Surfaces. Springer-Verlag Berlin Heidelberg. 13. Bankole, O., Vincent, B. A., Oluwole, A. S., Temitayo, A. M. and Simeon, A. P., 2015. Simulation Model to explore the Characteristic Pump Curve of an Injection Molding Machine: A case study of ABUAD water plant. International Journal of Engineering, Business and Enterprise Applications (IJEBEA), 13(1), pp. 63–68. 14. Becan, M. R., 2005. Fuzzy Boundary Layer Solution to Nonlinear Hydraulic Position Control Problem. In Proceedings of World Academy of Science, Engineering and Technology, 5, pp. 206–208. 15. Bellad, K., Hiremath, S. S., Singaperumal, M. and Karunanidhi, S., 2014. Optimization of PID Parameters in Electro-Hydraulic Actuator System Using Genetic Algorithm. Applied Mechanics and Materials, 592(2014), pp. 2229–2233. 16. Bessa, W. M., Dutra, M. S. and Kreuzer, E., 2010. Sliding Mode Control with Adaptive Fuzzy Dead-zone Compensation of an Electro-hydraulic Servo-system. Journal of Intelligent and Robotic Systems, 58(1), pp. 3–16. 17. Blackburn, J. F., 1969. Fluid Power Control. New York: Technology Press of M. I. T. and John Wiley. 18. Bobrow, J. E. and Lum, K., 1996. Adaptive, High Bandwidth Control of a Hydraulic Actuator. Journal of Dynamic Systems, Measurement, and Control, 118(4), pp. 714–720. 19. Bonchis, A., Corke, P. I. and Rye, D. C., 2002. Experimental Evaluation of Position Control Methods for Hydraulic Systems. IEEE Transactions on Control Systems Technology, 10(6), pp. 876–882. 20. Bonchis, A., Corke, P. I., Rye, D. C. and Ha, Q. P., 2001. Variable Structure Methods in Hydraulic Servo Systems Control. Automatica, 37(4), pp. 589–595. 21. Cerman, O. and Husek, P., 2012. Adaptive Fuzzy Sliding Mode Control for Electro- hydraulic Servo Mechanism. Expert Systems with Applications, 39(11), pp. 10269–10277. 22. Cetin, S. and Akkaya, A. V., 2010. Simulation and Hybrid Fuzzy-PID Control for Positioning of a Hydraulic System. Nonlinear Dynamics, 61(3), pp. 465–476. 23. Chen, C.-K. and Zeng, W.-C., 2003. The Iterative Learning Control for the Position Tracking of the Hydraulic Cylinder. JSME International Journal Series C, 46(2), pp. 720–726. 24. Chen, C. Y., Liu, L. Q., Cheng, C. C. and Chiu, G. T. C., 2008. Fuzzy Controller Design for Synchronous Motion in a Dual-Cylinder Electro-hydraulic System. Control Engineering Practice, 16(6), pp. 658–673. 25. Chen, H. M., Renn, J. C. and Su, J. P., 2005. Sliding Mode Control with Varying Boundary Layers for an Electro-hydraulic Position Servo System. International Journal of Advanced Manufacturing Technology, 26(1–2), pp. 117–123. 26. Cho, S. H. and Edge, K. A., 2000. Adaptive Sliding Mode Tracking Control of Hydraulic Servosystems with Unknown Non-linear Friction and Modelling Error. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 214(4), pp. 247–257. 27. Choux, M. and Hovland, G., 2010. Adaptive Backstepping Control of Nonlinear Hydraulic- mechanical System Including Valve Dynamics. Modeling, Identification and Control, 31(1), pp. 35–44. 28. Chuang, C. W. and Shiu, L. C., 2004. CPLD based DIVSC of Hydraulic Position Control Systems. Computers and Electrical Engineering, 30(7), pp. 527–541. 29. Clerc, M., 1999. The Swarm and the Queen: Towards a Deterministic and Adaptive Particle Swarm Optimization. In Proceedings of the 1999 Congress on Evolutionary Computation,CEC 1999, 3, pp. 1951–1957. 30. Das, S., Abraham, A. and Konar, A., 2008. Particle Swarm Optimization and Differential Evolution Algorithms: Technical Analysis, Applications and Hybridization Perspectives. Studies in Computational Intelligence, 116(2008), pp. 1–38. 31. Dasmahapatra, S., Sarkar, B. K., Saha, R., Chatterjee, A., Mookherjee, S. and Sanyal, D. 2015. Design of an Adaptive Fuzzy-Bias SMC and Validation for a Rugged Electrohydraulic System. IEEE/ASME Transactions on Mechatronics, 20(6), pp. 2708–2715. 32. DeCarlo, R. A., Zak, S. H. and Matthews, G. P., 1988. Variable Structure Control of Nonlinear Multivariable Systems : A Tutorial. In Proceedings of the IEEE, 76(3), pp. 212– 232. 33. Di Rito, G., Denti, E. and Galatolo, R., 2008. Development and Experimental Validation of Real-time Executable Models of Primary Fly-by-wire Actuators. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 222(6), pp. 523–542. 34. Eberhart, R. C. and Shi, Y., 2001. Particle Swarm Optimization: Developments, Applications and Resources. In Proceedings of the 2001 Congress on Evolutionary Computation, 1, pp. 81–86. 35. Edwards, C. and Spurgeon, S. K., 1998. Sliding Mode Control: Theory and Applications. Taylor and Francis, London. Taylor and Francis. 36. Ehtiwesh, I. A. S. and Dorovic, Z., 2009. Comparative Analysis of Different Control Strategies for Electro-hydraulic Servo Systems. Proceedings of the World Academy of Science, Engineering and Technology, 56(6), pp. 906–909. 37. Eker, I., 2006. Sliding Mode Control with PID Sliding Surface and Experimental Application to an Electromechanical Plant. ISA Transactions, 45(1), pp. 109–118. 38. Eker, I., 2010. Second-order Sliding Mode Control with Experimental Application. ISA Transactions, 49(3), pp. 394–405. 39. Elbayomy, K. M., Zongxia, J. and Huaqing, Z., 2008. PID Controller Optimization by GA and Its Performances on the Electro-hydraulic Servo Control System. Chinese Journal of Aeronautics, 21(4), pp. 378–384. 40. Eryilmaz, B. and Wilson, B. H., 2001. Improved Tracking Control of Hydraulic Systems. 41. Journal of Dynamic Systems, Measurement, and Control, 123(3), pp. 457–462. 42. Fales, R., Spencer, E., Chipperfield, K., Wagner, F. and Kelkar, A., 2005. Modeling and Control of a Wheel Loader with a Human-in-the-Loop Assessment using Virtual Reality. Journal of Dynamic Systems, Measurement, and Control, 127(3), pp. 415–423. 43. Fateh, M. M. and Zirkohi, M. M., 2011. Adaptive Impedance Control of a Hydraulic Suspension System using Particle Swarm Optimisation. Vehicle System Dynamics, 49(12), pp. 1951–1965. 44. Finney, J. M., De Pennington, A., Bloor, M. S. and Gill, G. S., 1985. A Pole-Assignment Controller for an Electrohydraulic Cylinder Drive. ASME Journal of Dynamic Systems, Measurement, and Control, 107(2), pp. 145–150. 45. Fister, I., Yang, X.-S., Fister, I., Brest, J. and Fister, D., 2013. A Brief Review of Nature- Inspired Algorithms for Optimization. Electrotechnical Review, 80(3), pp. 1–7. 46. Fung, R. F. and Yang, R. T., 1998. Application of VSC in Position Control of a Nonlinear Electrohydraulic Servo System. Computers & Structures, 66(4), pp. 365–372. 47. Gao, F., Qi, Y., Yin, Q. and Xiao, J., 2010. An Novel Optimal PID tuning and On-line Tuning based on Artificial Bee Colony Algorithm. In 2010 International Conference on Computational Intelligence and Software Engineering, CiSE 2010, pp. 1–4. 48. Gao, Y. and Ding, N., 2012. Electro-hydraulic Proportional Pressure Control System of Hydraulic Machine. In IEEE International Conference on Industrial Informatics (INDIN), 35, pp. 370–373. 49. Gdoura, E. K., Feki, M. and Derbel, N., 2015. Sliding Mode Control of a Hydraulic Servo System Position using Adaptive Sliding Surface and Adaptive Gain. International Journal of Modelling, Identification and Control, 23(3), pp. 248--259. 50. Ghazali, R., Sam, Y. M., Rahmat, M. F., Hashim, A. W. I. M. and Zulfatman, Z., 2010. Position tracking control of an electro-hydraulic servo system using sliding mode control. Australian Journal of Basic and Applied Sciences, 4(10), pp. 4749–4759. 51. Ghazali, R., Sam, Y. M., Rahmat, M. F., Zulfatman and Hashim, A. W. I. M., 2012. Simulation and Experimental Studies on Perfect Tracking Optimal Control of an Electrohydraulic Actuator System. Journal of Control Science and Engineering, 2012, pp. 1--8. 52. Goharrizi, A. Y. and Sepehri, N., 2010. A Wavelet-based Approach to Internal Seal Damage Diagnosis in Hydraulic Actuators. IEEE Transactions on Industrial Electronics, 57(5), pp. 1755–1763. 53. Guan, C. and Pan, S., 2008a. Adaptive Sliding Mode Control of Electro-hydraulic System with Nonlinear Unknown Parameters. Control Engineering Practice, 16(11), pp. 1275–1284. 54. Guan, C. and Pan, S., 2008b. Nonlinear Adaptive Robust control of electro-hydraulic servo- actuator with some unknown parameters. IEEE Transactions on Control Systems Technology, 16(3), pp. 434–445. 55. Guo, H., Liu, Y., Liu, G. and Li, H. 2008. Cascade Control of a Hydraulically Driven 6-DOF Parallel Robot Manipulator based on a Sliding Mode. Control Engineering Practice, 16(9), pp. 1055–1068. 56. Ha, Q. P., Nguyen, Q. H., Rye, D. C. and Durrant-Whyte, H. F., 2001. Fuzzy Sliding-mode Controllers with Applications. IEEE Transactions on Industrial Electronics, 48(1), pp. 38– 46. 57. Hanh, D. Le, Ahn, K. K., Kha, N. B. and Jo, W. K., 2009. Trajectory control of electro-hydraulic excavator using fuzzy self tuning algorithm with neural network. Journal of Mechanical Science and Technology, 23(1), pp. 149–160. 58. Hargreaves, B. A., Vasanawala, S. S., Pauly, J. M. and Nishimura, D. G., 2001. Characterization and Reduction of the Transient Response in Steady-state MR Imaging. Magnetic Resonance in Medicine, 46(1), pp. 149–158. 59. Has, Z., Rahmat, M. F., Husain, A. R., Ishaque, K., Ghazali, R., Ahmad, M. N., Sam, Y. M. and Rozali, S. M., 2014. Robust Position Tracking Control of an Electro-Hydraulic Actuator in the Presence of Friction and Internal Leakage. Arabian Journal for Science and Engineering, 39(4), pp. 2965–2978. 60. Hedrick, J. and Girard, A., 2005. Control of Nonlinear Dynamic Systems : Theory and Applications. Berkeley, CA: Univ. California, 2005. 61. Ioan, U., George, T., Felicia, U. and Radu, C., 2005. Neuro-Fuzzy Control is Something Better Than Crisp Control. In Proceedings of the International Conference on Theory and Application of Mathematics and Informatics ICTAMI 2005, pp. 259–269. 62. Ishak, N., Tajjudin, M., Ismail, H., Rahiman, M. H. F., Sam, Y. M. and Adnan, R., 2012. PID Studies on Position Tracking Control of an Electro-Hydraulic Actuator. International Journal of Control Science and Engineering, 2(5), pp. 120–126. 63. Itkis, U., 1976. Control Systems of Variable Structure. New York: Halsted Press - John Wiley Sons, Inc. 64. Ivanovic, V., Hoic, M., Deur, J., Herold, Z. and Tseng, E. H., 2012. Design of Test Rigs for a Dry Dual Clutch and its Electromechanical Actuator. SAE International Journal of Passenger Cars-Mechanical Systems, 5(1), pp. 612–620. 65. Jelali, M. and Kroll, A., 2003. Hydraulic Servo-systems: Modelling, Identification and Control. Springer - Verlag London Limited. 66. Kaddissi, C., Kenne, J. P. and Saad, M., 2007. Identification and Real-time Control of an Electrohydraulic Servo System based on Nonlinear Backstepping. Mechatronics, IEEE/ASME, 12(1), pp. 12–22. 67. Kaddissi, C., Kenne, J. and Saad, M., 2011. Indirect Adaptive Control of an Electrohydraulic Servo System on Nonlinear Backstepping. IEEE/ASME Transactions on Mechatronics, 16(6), pp. 1171–1177. 68. Kalyoncu, M. and Haydim, M., 2009. Mathematical Modelling and Fuzzy Logic based Position Control of an Electrohydraulic Servosystem with Internal Leakage. Mechatronics, 19(6), pp. 847–858. 69. Karpenko, M. and Sepehri, N., 2003. Robust Position Control of an Electrohydraulic Actuator With a Faulty Actuator Piston Seal. Journal of Dynamic Systems, Measurement, and Control, 125(3), pp. 413–423. 70. Karpenko, M. and Sepehri, N., 2009. Hardware-in-the-loop Simulator for Research on Fault Tolerant Control of Electrohydraulic Actuators in a Flight Control Application.Mechatronics, 19(7), pp. 1067–1077. 71. Karpenko, M. and Sepehri, N., 2010a. On Quantitative Feedback Design for Robust Position Control of Hydraulic Actuators. Control Engineering Practice, 18(3), pp. 289–299. 72. Karpenko, M. and Sepehri, N., 2010b. Quantitative Fault Tolerant Control Design for a Leaking Hydraulic Actuator. Journal of Dynamic Systems, Measurement, and Control, 132(5), pp. 1–7. 73. Karpenko, M. and Sepehri, N., 2012. Electrohydraulic Force Control Design of a Hardware- in-the-loop Load Emulator Using a Nonlinear QFT Technique. Control Engineering Practice, 20(6), pp. 598–609. 74. Kilic, E., Dolen, M., Caliskan, H., Koku, A. B. and Balkan, T., 2014. Pressure Prediction on a Variable-speed Pump Controlled Hydraulic System using Structured Recurrent Neural Networks. Control Engineering Practice, 26(1), pp. 51–71. 75. Kim, D. H. and Tsao, T. C., 2000. A Linearized Electrohydraulic Servovalve Model for Valve Dynamics Sensitivity Analysis and Control System Design. Journal of Dynamic Systems, Measurement, and Control, 122(1), pp. 179–187. 76. Kim, H. M., Park, S. H., Song, J. H. and Kim, J. S., 2010. Robust Position Control of Electro- Hydraulic Actuator Systems Using the Adaptive Back-Stepping Control Scheme. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 224(6), pp. 737–746. 77. Kirecci, A., Topalbekiroglu, M. and Eker, I., 2003. Experimental Evaluation of a Model Reference Adaptive Control for a Hydraulic Robot: A Case Study. Robotica, 21(1), pp. 71– 78. 78. Knohl, T. and Unbehauen, H., 2000. Adaptive Position Control of Electrohydraulic Servo Systems using ANN. Mechatronics, 10(1), pp. 127–143. 79. Krogerus, T., Hyvonen, M., Raivio, K. and Huhtala, K., 2013. Recognition of Operating States of a Medium-Sized Mobile Machine. In 13th Scandinavian International Conference on Fluid Power, pp. 379--388. 80. Lee, S. and Srinivasan, K., 1989. On-line Identification of Process Models in Closed-loop Material Testing. Journal of Dynamic Systems, Measurement, and Control, 111(2), pp. 172- 81. -179. 82. Lewis, E. E. and Stern, H., 1962. Design of Hydraulic Control Systems. McGraw-Hill. 83. Li, S., Ruan, J., Pei, X., Yu, Z. Q. and Zhu, F. M., 2006. Electrohydraulic Synchronizing Servo Control of a Robotic Arm. Journal of Physics: Conference Series, 48(1), pp. 1268– 1272. 84. Li, Y. and Xu, Q., 2010. Adaptive Sliding Mode Control with Perturbation Estimation and PID Sliding Surface for Motion Tracking of a Piezo-driven Micromanipulator. IEEE Transactions on Control Systems Technology, 18(4), pp. 798–810. 85. Lin, M.-H., Tsai, J.-F. and Yu, C.-S., 2012. A Review of Deterministic Optimization Methods in Engineering and Management. Mathematical Problems in Engineering, 2012, pp. 1–15. 86. Lin, T., Wang, Q., Hu, B. and Gong, W., 2010. Development of Hybrid Powered Hydraulic Construction Machinery. Automation in Construction, 19(1), pp. 11–19. 87. Lin, Y., Shi, Y. and Burton, R., 2013. Modeling and Robust Discrete-Time Sliding-mode Control Design for a Fluid Power Electrohydraulic Actuator (EHA) System. IEEE/ASME Transactions on Mechatronics, 18(1), pp. 1–10. 88. Ling, T. G., Rahmat, M. F. and Husain, A. R., 2015. A Comparative Study of Linear ARX and Nonlinear ANFIS Modeling of an Electro-Hydraulic Actuator System. Jurnal Teknologi, 67(5), pp. 1–8. 89. Liu, G., Qu, Z., Liu, X. and Han, J., 2014. Tracking Performance Improvements of an Electrohydraulic Gough-Stewart Platform using a Fuzzy Incremental Controller. Industrial Robot: An International Journal, 41(2), pp. 225–235. 90. Liu, Y. and Handroos, H., 1999. Sliding Mode Control for a Class of Hydraulic Position Servo. Mechatronics, 9(1), pp. 111–123. 91. Loukianov, A. G., Rivera, J., Orlov, Y. V. and Teraoka, E. Y. M., 2009. Robust Trajectory Tracking for an Electro-hydraulic Actuator. IEEE Transactions on Industrial Electronics, 56(9), pp. 3523–3531. 92. Love, L., Lanke, E. and Alles, P., 2012. Estimating the Impact (Energy, Emissions and Economics) of the US Fluid Power Industry. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, pp. 1--27. 93. Lu, X., Fan, B. and Huang, M., 2015. A Novel LS-SVM Modeling Method for a Hydraulic Press Forging Process with Multiple Localized Solutions. IEEE Transactions on Industrial Informatics, 11(3), pp. 663–670. 94. Mandal, P., Sarkar, B. K., Saha, R., Mookherjee, S. and Sanyal, D., 2016. Designing an optimized model-free controller for improved motion tracking by rugged electrohydraulic system. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 230(5), pp. 385–396. 95. Maskrey, R. H. and Thayer, W. J., 1978. A Brief History of Electrohydraulic Servomechanisms. Moog Technical Bulletin, 100, pp. 141. 96. Mayr, O., 1970. The Origins of Feedback Control. MIT Press. 97. McCloy, D. and Martin, H. R., 1973. The Control of Fluid Power. Wiley. 98. Merritt, H. E., 1967. Hydraulic Control Systems. John Wiley & Sons. 99. Mihajlov, M., Nikolic, V. and Antic, D., 2002. Position Control of an Electro-Hydraulic Servo System using Sliding Mode Control Enhanced by Fuzzy PI Controller. Facta Universitatis-Series: Mechanical Engineering, 1(9), pp. 1217–1230. 100. Milic, V., Situm, Z. and Essert, M., 2010. Robust Hinfinity Position Control Synthesis of an Electro-hydraulic Servo System. ISA Transactions, 49(4), pp. 535–542. 101. Mintsa, H. A., Venugopal, R., Kenne, J.-P. and Belleau, C., 2012. Feedback Linearization- based Position Control of an Electrohydraulic Servo System with Supply Pressure Uncertainty. IEEE Transactions on Control Systems Technology, 20(4), pp. 1092–1099. 102. Nazir, M. B. and Wang, S., 2010. Optimized Fuzzy Sliding Mode Control to Enhance Chattering Reduction for Nonlinear Electro-hydraulic Servo System. International Journal of Fuzzy Systems, 12(4), pp. 291–299. 103. Nguyen, N. M. and Meyer, R. G., 1992. Start-up and Frequency Stability in High-frequency Oscillators. IEEE J. Solid-State Circuits, 27(5), pp. 810–820. 104. Nguyen, S. D., Nguyen, Q. H. and Choi, S. B., 2015. A Hybrid Clustering based Fuzzy Structure for Vibration Control - Part 2: An Application to Semi-active Vehicle Seat- suspension System. Mechanical Systems and Signal Processing, 56, pp. 288–301. 105. Nickabadi, A., Ebadzadeh, M. M. and Safabakhsh, R., 2011. A Novel Particle Swarm Optimization Algorithm with Adaptive Inertia Weight. Applied Soft Computing Journal, 11(4), pp. 3658–3670. 106. Niksefat, N. and Sepehri, N., 2002. A QFT Fault-tolerant Control for Electrohydraulic Positioning Systems. IEEE Transactions on Control Systems Technology, 10(4), pp. 626– 632. 107. Nunney, M. J., 2007. Light and Heavy Vehicle Technology. Butterworth-Heinemann. 108. Osman, I. H. and Kelly, J. P., 2012. Meta-heuristics: theory and applications. Springer Science & Business Media. 109. Passino, K. M., 2001. Intelligent control: an overview of techniques. Perspectives in Control Engineering: Technologies, Applications, and New Directions, pp. 104–133. 110. Pati, A., Singh, S. and Negi, R., 2014. Sliding Mode Controller Design using PID Sliding Surface for Half Car Suspension System. In 2014 Students Conference on Engineering and Systems (SCES), pp. 1–6. 111. Pedro, J. O., Dangor, M., Dahunsi, O. A. and Ali, M. M., 2013. Differential Evolution-Based PID Control of Nonlinear Full-Car Electrohydraulic Suspensions. Mathematical Problems in Engineering, 2013, pp. 1–13. 112. Pedro, J. O., Dangor, M., Dahunsi, O. A. and Ali, M. M., 2014. Intelligent Feedback Linearization Control of Nonlinear Electrohydraulic Suspension Systems using Particle Swarm Optimization. Applied Soft Computing, 24, pp. 50–62. 113. Plummer, A. R. and Vaughan, N. D., 1996. Robust Adaptive Control for Hydraulic Servo Systems. Journal of Dynamic Systems, Measurement, and Control, 118(2), pp. 237–244. 114. Plummer, A. R. and Vaughan, N. D., 1997. Decoupling Pole-placement Control, with Application to a Multi-channel Electro-hydraulic Servosystem. Control Engineering 115. Practice, 5(3), pp. 313–323. 116. Poloei, F., Zekri, M. and Shoorehdeli, M. A., 2011. Fuzzy-LQR Hybrid Control of an Electro Hydraulic Velocity Servo System. In 2011 11th International Conference on Hybrid Intelligent Systems (HIS), pp. 5–9. 117. Rhif, A., 2012. A High Order Sliding Mode Control with PID Sliding Surface: Simulation on a Torpedo. International Journal of Information Technology, Control and Automation (IJITCA), 2(1), pp. 1–13. 118. Rolt, L. T. C., 1962. Great Engineers. G. Bell and Sons, Ltd. 119. Rozali, S. M., Kamarudin, M. N., Rahmat, M. F. and Husain, A. R., 2013. Asymptotic Tracking Position Control for Nonlinear Systems using Backstepping Technique. Procedia Engineering, 53, pp. 255–263. 120. Rozali, S. M., Rahmat, M. F. and Husain, A. R., 2012. Backstepping Design for Position Tracking Control of Nonlinear System. In 2012 IEEE International Conference on Control System, Computing and Engineering, pp. 77–82. 121. Rozali, S. M., Rahmat, M. F. and Husain, A. R., 2014. Performance Comparison of Particle Swarm Optimization and Gravitational Search Algorithm to the Designed of Controller for Nonlinear System. Journal of Applied Mathematics, 2014, pp. 1--9. 122. Controller Design for an Industrial Hydraulic Actuator with Servo System. In Proceeding, 2010 IEEE Student Conference on Research and Development - Engineering: Innovation and Beyond, SCOReD 2010, pp. 218–223. 123. Sabanovic, A., 2011. Variable Structure Systems with Sliding Modes in Motion Control— A Survey. IEEE Transactions on Industrial Informatics, 7(2), pp. 212–223. 124. Sang, Y., Gao, H. and Xiang, F., 2014. Practical Friction Models and Friction Compensation in High-Precision Electro-Hydraulic Servo Force Control Systems. Instrumentation Science 125. & Technology, 42(2), pp. 184--199. 126. Sangpet, T. and Kuntanapreeda, S., 2013. Force Control of an Electrohydraulic Actuator using a Fractional-Order Controller. Asian Journal of Control, 15(3), pp. 764--772. 127. Sarkar, B. K., Mandal, P., Saha, R., Mookherjee, S. and Sanyal, D., 2013. GA-Optimized Feedforward-PID Tracking Control for a Rugged Electrohydraulic System Design. ISA Transactions, 52(6), pp. 853–861. 128. Sepehri, N. and Wu, G., 1998. Experimental Evaluation of Generalized Predictive Control Applied to a Hydraulic Actuator. Robotica, 16(4), pp. 463–474. 129. Shi, Y. and Eberhart, R., 1998. A Modified Particle Swarm Optimizer. In The 1998 IEEE International Conference on Evolutionary Computation Proceedings, pp. 69–73. 130. Controller. Mechatronics, 5(5), pp. 497–512. 131. Slotine, J.-J. E. and Spong, M. W., 1985. Robust Robot Control with Bounded Input Torques. 132. Journal of Robotic Systems, 2(4), pp. 329--352. 133. Sohl, G. A. and Bobrow, J. E., 1999. Experiments and Simulations on the Nonlinear Control of a Hydraulic Servosystem. IEEE Transactions on Control Systems Technology, 7(2), pp. 238–247. 134. Soon, C. C., Ghazali, R., Jaafar, H. I. and Hussien, S. Y. S., 2016. The Effects of Parameter Variation in Open-Loop and Closed-Loop Control Scheme for an Electro-hydraulic Actuator System. International Journal of Control and Automation, 9(11), pp. 1–13. 135. Stepanenko, Y., Caor, Y. and Su, C.-Y., 1998. Variable Structure Control of Robotic Manipulator With Pid Sliding Surfaces. International Journal of Robust and Nonlinear Control, 8(1), pp. 79–90. 136. Sulc, B. and Jan, J., 2002. Non Linear Modelling and Control of Hydraulic Actuators. Acta Polytechnica, 42(3), pp. 41–47. 137. Thurston, R. H., 1878. A History of the Growth of the Steam-engine. D. Appleton. 138. Tri, N. M., Nam, D. N. C., Park, H. G. and Ahn, K. K., 2015. Trajectory Control of an Electro Hydraulic Actuator Using an Iterative Backstepping Control Scheme. Mechatronics, 29, pp. 96–102. 139. Utkin, V., 1977. Variable Structure Systems with Sliding Modes. IEEE Transactions on Automatic Control, 22(2), pp. 212–222. 140. Viersma, T. J., 1980. Analysis, Synthesis, and Design of Hydraulic Servosystems and Pipelines. Elsevier Scientific Pub. Co. 141. Wang, C., Jiao, Z., Wu, S. and Shang, Y., 2014. Nonlinear Adaptive Torque Control of Electro-hydraulic Load System with External Active Motion Disturbance. Mechatronics, 24(1), pp. 32–40. 142. Wang, S., Burton, R. and Habibi, S., 2011. Sliding Mode Controller and Filter Applied to an Electrohydraulic Actuator System. Journal of Dynamic Systems, Measurement, and Control, 133(2), pp. 1--7. 143. Wang, T., Wang, Q. and Lin, T., 2013. Improvement of Boom Control Performance for Hybrid Hydraulic Excavator with Potential Energy Recovery. Automation in Construction, 30, pp. 161–169. 144. Wang, X. G., Li, L., Han, H. L., Wei, X. L., An, M. D. and Liu, B. F., 2014. Electro-hydraulic Servo Actuator Parameters Self-tuning Three-Dimensional Fuzzy Control Research. In Applied Mechanics and Materials, 607, pp. 811–814. 145. Witters, M. and Swevers, J., 2010. Black-box Model Identification for a Continuously Variable, Electro-hydraulic Semi-active Damper. Mechanical Systems and Signal Processing, 24(1), pp. 4–18. 146. Won, D. and Kim, W., 2015. Disturbance Observer based Backstepping for Position Control of Electro-hydraulic Systems. International Journal of Control, Automation and Systems, 13(2), pp. 488–493. 147. Wonohadidjojo, D. M., Kothapalli, G. and Hassan, M. Y., 2013. Position Control of Electro- hydraulic Actuator System using Fuzzy Logic Controller Optimized by Particle Swarm Optimization. International Journal of Automation and Computing, 10(3), pp. 181–193. 148. Yan, J., Li, B., Ling, H. F., Chen, H. S. and Zhang, M. J., 2013. Nonlinear State Space Modeling and System Identification for Electrohydraulic Control. Mathematical Problems in Engineering, 2013, pp. 1–9. 149. Yang, X., 2010. Nature-Inspired Metaheuristic Algorithms Second Edition. Luniver Press United Kingdom. 150. Yao, B., Bu, F., Reedy, J. and Chiu, G. T. C., 2000. Adaptive Robust Motion Control of Single-rod Hydraulic Actuators: Theory and Experiments. IEEE/ASME Transactions on Mechatronics, 5(1), pp. 79–91. 151. Yao, J., Jiang, G., Gao, S., Yan, H. and Di, D., 2014a. Particle Swarm Optimization-based Neural Network Control for an Electro-hydraulic Servo System. Journal of Vibration and Control, 20(9), pp. 1369–1377. 152. Yao, J., Jiao, Z., Ma, D. and Yan, L., 2014b. High-accuracy Tracking Control of Hydraulic Rotary Actuators with Modeling Uncertainties. IEEE/ASME Transactions on Mechatronics, 153. 19(2), pp. 633–641. 154. Yao, J., Jiao, Z. and Yao, B., 2014c. Nonlinear Adaptive Robust Backstepping Force Control of Hydraulic Load Simulator: Theory and Experiments. Journal of Mechanical Science and Technology, 28(4), pp. 1499--1507. 155. Yates, F. A., 1972. The Rosicrucian Enlightenment. Routledge. 156. You, B., Lou, Z., Luo, Y., Xu, Y. and Wang, X., 2015. Prediction of Pressing Quality for Press-Fit Assembly based on Press-Fit Curve and Maximum Press-Mounting Force. International Journal of Aerospace Engineering, 2015, pp. 1–10. 157. Yu, H., Feng, Z. and Wang, X., 2004. Nonlinear Control for a Class of Hydraulic Servo System. Journal of Zhejiang University. Science, 5(11), pp. 1413–1417. 158. Zeng, H. and Sepehri, N., 2008. Tracking Control of Hydraulic Actuators using a LuGre Friction Model Compensation. Journal of Dynamic Systems, Measurement, and Control, 130(1), pp. 1–7. 159. Zhang, Q., Meinhold, D. R. and Krone, J. J., 1999. Valve Transform Fuzzy Tuning Algorithm for Open-centre Electro-hydraulic Systems. Journal of Agricultural Engineering Research, 73(4), pp. 331–339. 160. Zhang, Y., Alleyne, A. G. and Zheng, D., 2005. A Hybrid Control Strategy for Active Vibration Isolation with Electrohydraulic Actuators. Control Engineering Practice, 13(3), 161. pp. 279–289. 162. Zhao, K., Liu, Z., Yu, S., Li, X., Huang, H. and Li, B., 2015. Analytical Energy Dissipation in Large and Medium-sized Hydraulic Press. Journal of Cleaner Production, 103, pp. 908– 915. 163. Zhao, T. and Virvalo, T., 1995. Development of Fuzzy State Controller and Its Application to a Hydraulic Position Servo. Fuzzy Sets and Systems, 70(2), pp. 213–221. 164. Zhe, X., Junyao, G., Hui, L., Huaxin, L., Xin, L., Yi, L., Wentao, S. and Wenxue, Z., 2014. The Modeling and Controlling of Electrohydraulic Actuator for Quadruped Robot based on Fuzzy Proportion Integration Differentiation Controller. Journal of Mechanical Engineering Science, 228(14), pp. 2557–2568. 165. Zheng, J. M., Zhao, S. D. and Wei, S. G., 2009. Application of Self-tuning Fuzzy PID Controller for a SRM Direct Drive Volume Control Hydraulic Press. Control Engineering Practice, 17(12), pp. 1398–1404. 166. Zhiyong, T., Di, S., Difei, L., Zhaoqin, P., Longlong, H. and Zhongcai, P., 2013. Electro- hydraulic Servo System for Human Lower-limb Exoskeleton based on Sliding Mode Variable Structure Control. In 2013 IEEE International Conference on Information and Automation, ICIA 2013, pp. 559–563. 167. Ziaei, K. and Sepehri, N., 2000. Modeling and Identification of Electrohydraulic Servos. 168. Mechatronics, 10(7), pp. 761–772. 169. Ziaei, K. and Sepehri, N., 2001. Design of a Nonlinear Adaptive Controller for an Electrohydraulic Actuator. Journal of Dynamic Systems, Measurement, and Control, 123(3), pp. 449–456. 170. Zielinski, K. and Laur, R., 2007. Stopping Criteria for a Constrained Single-objective Particle Swarm Optimization Algorithm. Informatica, 31(1), pp. 51–59. 171. Zulfatman and Rahmat, M. F., 2009. Application of Self-Tuning Fuzzy Pid Controller on Industrial Hydraulic Actuator. International Journal on Smart Sensing and Intelligent Systems, 2(2), pp. 246–261.