Fuzzy control of direct-driven hydraulic drive without conventional oil tank

Minav, Tatiana; Pietola, Matti; Filatov, Denis M.; Devyatkin, A. V.; Heikkinen, Jani

doi:10.1109/scm.2017.7970612

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…In the past few years, thanks to the advantages of compact systems, high power density, and flexible control, DDH has become a research focus for scientists. Aalto University conducted an in-depth exploration of it, and in 2014, Tatiana A. Minav et al proposed a compact DDH without a conventional oil tank for the non-road mobile machinery (NRMM) application [45]. From Fig.…”

Section: A Review Of Eha Development Used In Engineering Machinerymentioning

confidence: 99%

A review on integral evolution of electro-hydraulic actuation in three momentous domains: aerospace, engineering machinery, and robotics

Liu,

SUN,

Yue

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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The valve-controlled and pump-controlled hydraulic technology are both extensively used in hydraulic equipment nowadays, but the valve-controlled hydraulic technology has obvious shortcomings such as the lower power utilization rate due to the inevitable throttling and overflow losses. Pump-controlled hydraulic technology can enhance the efficiency of the entire hydraulic system owing to eliminate these energy losses and overcome the defects of valve-controlled technology. Electro-hydraulic actuator (EHA) is an archetypal pump control system with the huge advantages of high power-to-weight ratio, low energy consumption and compact structure. As a consequence, research on EHA has become a hot topic in the field of fluid power transmission and control by degrees. To date, many predecessors have conducted indepth exploration on the investigation related to EHA. However, the relevant literatures are extremely scattered, and the research directions of these papers are unequal so that it is quite necessary and meaningful to classify and summarize the whole development history of EHA. This review mainly introduces the evolvement of EHA in the three major fields that include aerospace, engineering machinery and robotics from the origin to the current, aiming at clarifying underlying issues and challenges in the study and application of EHA and discussing the further development tendency of this technology. The outlining content gathered in this document not only will be a valuable comprehensive source of information concerning EHA to scholars, but also provides a forceful reference for future studies with regard to high-power density and energy-efficient hydraulic technique.

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Section: A Review Of Eha Development Used In Engineering Machinerymentioning

confidence: 99%

A review on integral evolution of electro-hydraulic actuation in three momentous domains: aerospace, engineering machinery, and robotics

Liu,

SUN,

Yue

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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“…Schmidt et al, 2017 developed a Speed-variable Switched Differential Pump (SvSDP) drive for asymmetric cylinders [10]. Minav et al, 2017 proposed a fuzzy controller for a direct drive hydraulic system aiming at the speed of the servo motor, and excellent control capabilities of speed and position were accomplished [11]. Helian et al, 2019 designed an adaptive robust controller for a direct drive system, where a servomotor pump was adopted as the drive part [12].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Direct Drive Hydraulic System with the Torque Mode

Zhang

Jiang

2021

Energies

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The torque mode is more suitable for the direct drive 6 degree of freedom (6-DOF) parallel mechanism than the speed mode that both dynamic coupling and current coupling among motors are easily solved, but its key parameters and dynamic characteristics have never been studied, which are important and are the goals of this paper. First the hydraulic system of the direct drive 6-DOF parallel mechanism is simplified. Then the transfer function of the direct drive hydraulic system with the torque mode is deduced together with that of the speed mode. Finally, comparative experiments are conducted. Results show that the dynamic characteristics of the system with the torque mode which are generally worse than those with the speed mode, are mainly determined by the parameters of the motor-pump second-order element of the transfer function composed of two under-damped second-order elements, proportion differentiation (PD) control strategy and dynamic pressure feedback (DPF) control strategy are useful for the system with the torque mode, but practical and effective methods are still needed.

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“…It is shown that different types of oil can significantly increase system efficiency by almost 10% for temperatures below -10ºC. From the aspect of the control theory in [13], a self-tuning fuzzy PID controller is used for controlling the DDH unit with the ability of online tuning making this controller more adaptive and effective in the proposed application. From the given literature it's concluded that the system dynamics between traditionally valve-controlled and DDH drive hasn't been compared yet.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Sliding Mode Controller for Classical and Direct Driven Electrohydraulic System

Benić¹,

Šitum²,

Cipek³

et al. 2021

Linköping Electronic Conference Proceedings

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In this paper, a novel energy-efficient Direct Driven Hydraulic (DDH) drive is made in parallel with a classical valve-controlled proportional electrohydraulic system. In the proposed concept asymmetrical hydraulic cylinder is controlled with two reversible pumps directly connected to a servo motor. Due to direct control of the oil flow, such system provides higher energy efficiency in comparison to a valve-controlled hydraulic system. The experimental setup is designed with the possibility of easy switching between both systems, which enables an exact comparison of the experimental results. Sliding Mode Controller (SMC) is designed for the DDH system and also for the classical proportional electro-hydraulic system. A comparison study of two systems is done based on the experimental results obtained with the SMC while reference results are obtained with a widely used PID controller. Parameters for the PID controller are obtained with the Ziegler-Nichols method. The same parameters are used for both controllers in all test cases. The performance and energy efficiency of the proposed system is evaluated through a step and sine wave reference signal with different payloads varying from 0 to 200 kg with 20 kg increments. Additionally, system performance is evaluated based on six parameters calculated from the system response while energy efficiency is calculated based on input and output powers of the systems.

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Fuzzy control of direct-driven hydraulic drive without conventional oil tank

Cited by 8 publications

References 10 publications

A review on integral evolution of electro-hydraulic actuation in three momentous domains: aerospace, engineering machinery, and robotics

A review on integral evolution of electro-hydraulic actuation in three momentous domains: aerospace, engineering machinery, and robotics

Experimental Study of the Direct Drive Hydraulic System with the Torque Mode

Comparison of Sliding Mode Controller for Classical and Direct Driven Electrohydraulic System

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