Research on Feedback-Linearized Sliding Mode Control of Direct-Drive Volume Control Electro-Hydraulic Servo System

Chen, Gexin; Jia, Pengshuo; Yan, Gangfeng; Liu, Huilong; Chen, Wenbin; Cui, Jia; Ai, Chao

doi:10.3390/pr9091676

Cited by 11 publications

(5 citation statements)

References 12 publications

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“…To address this implementation issue, we propose a nonlinear observer that is a variation of the one developed in [26], [43] and [61]. We start by reorganizing the model in a linear / nonlinear separated parts near to the affine in control form [62]. We obtain ( 14)- (15).…”

Section: The Proposed Nonlinear Observer Designmentioning

confidence: 99%

An Alternative Nonlinear Lyapunov Redesign Velocity Controller for an Electrohydraulic Drive

Mintsa,

Eny,

Senouveau

et al. 2023

Journal of Robotics and Control

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This research aims at developing control law strategies that improve the performances and the robustness of electrohydraulic servosystems (EHSS) operation while considering easy implementation. To address the strongly nonlinear nature of the EHSS, a number of control algorithms based on backstepping approach is intensively used in the literature. The main contribution of this paper is to consider an alternative approach to synthetize a Lyapunov redesign nonlinear EHSS velocity controller. The proposed control law design is based on an appropriate choice of the control lyapunov function (clf), the extension of the Sontag formula and the construction of a nonlinear observer. The clf includes all the three system variable states in a positive define function. The Sontag formula is used in the time derivative of our clf in order to ensure an asymptotic stabilizing controller for regulating and tracking objectives. A nonlinear observer is developed in order to bring to the proposed controller the estimated values of the first and the second time output derivatives. The design, the tuning implementation and the performances of the proposed controller are compared to those of its equivalent backstepping controller. It is shown that the proposed controller is easier to design with simple implementation tuning while the backstepping controller has several complex design steps and implementation tuning issue. Moreover, the best performances especially under disturbance in the viscous damping are achieved with the proposed controller.

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Section: The Proposed Nonlinear Observer Designmentioning

confidence: 99%

An Alternative Nonlinear Lyapunov Redesign Velocity Controller for an Electrohydraulic Drive

Mintsa,

Eny,

Senouveau

et al. 2023

Journal of Robotics and Control

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“…The rack and pinion gear valve has a substantial impact and is crucial in guiding the driver's actions during transitions, turning maneuvers, and low-speed driving modes. In 2019, was continued by designing an EHPS controller for smart electric buses, including a controller structure with a Luenberger observer 19) 20) , sliding mode 21) and feedforward control 22) . All controllers are designed by analyzing vehicle responsibility based on the stability and controllability factors of the vehicle when the driver controls the steering wheel, taking into account uncertainty and road conditions.…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Hydraulic and Electro-Hydraulic Power Steering Control Systems for Increasing Energy Efficiency

Meiyanto Eko Sulistyo,

Ristiana,

Kaleg

et al. 2023

Evergreen

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This research offered a comparison of hydraulic (HPS) and electro-hydraulic power steering (EHPS) hydraulic pressure characteristics. The goal is to assess the potential for energy savings if an electric motor replaces hydraulic pressure. The purpose is to calculate the potential energy efficiency if an electric motor replaces hydraulic pressure. For this comparison, HPS and EHPS were both modeled. A PI controller was developed based on these models to regulate the steering wheel position and angular motor speed. In addition, the systems are compared by using the same input reference and transient response system, and the energy consumption is computed. Thus, with the installation of an electric motor in the power steering, it has a good response, functions in an optimal region, stabilizes, and has a 59.95% increase in energy efficiency.

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“…Therefore, scholars explore novel direct-drive pumps based on the optimized design of linear pumps [6][7][8]. As a critical component of the novel pump control system to achieve high response, the direct-drive pump has become a novel hotspot for its high integration, energysaving, control flexibility, and strong stability [9,10].…”

Section: Introductionmentioning

confidence: 99%

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

Lu¹,

Tan²,

Ge³

et al. 2022

Smart Mater. Struct.

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In this study, to enhance the frequency-flow characteristics of the novel electromagnetic direct-drive pump (EDDP). An adaptive disturbance observer-based improved super-twisting sliding mode control (ISTSMC-ADOB) is proposed to address the problem in which the response quality is deteriorated by factors such as parameter mismatch and disturbance. An adaptive disturbance observer (ADOB) is designed to achieve adaptive compensation, avoid the use of high-gain feedback, and extend the applicability of the conventional disturbance observer (DOB). An improved super-twisting sliding mode control (ISTSMC) based on the fast terminal sliding mode (FTSM) algorithm is designed to ensure faster convergence of the error in finite time. By combining the ADOB with the ISTSMC, the conservative parameter selection of the sliding mode control (SMC) is avoided, and the accuracy and robustness are further strengthened. The stability is analyzed based on Lyapunov. The results show that the proposed method effectively improves the steady-state accuracy, response speed, and robustness in trajectory tracking of the electromagnetic linear actuator (EMLA) for the EDDP. This further enhances the frequency-flow characteristics of the system.

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Research on Feedback-Linearized Sliding Mode Control of Direct-Drive Volume Control Electro-Hydraulic Servo System

Cited by 11 publications

References 12 publications

An Alternative Nonlinear Lyapunov Redesign Velocity Controller for an Electrohydraulic Drive

An Alternative Nonlinear Lyapunov Redesign Velocity Controller for an Electrohydraulic Drive

A Comparison of Hydraulic and Electro-Hydraulic Power Steering Control Systems for Increasing Energy Efficiency

Adaptive disturbance observer-based improved super-twisting sliding mode control for electromagnetic direct-drive pump

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