Sliding Mode Control for a Pneumatic Servo System with Friction Compensation

Tran, Xuan Bo; Nguyen, Van Lai; Nguyen, Nam Hoai; Pham, Duc Thinh; Phan, Van Lanh

doi:10.1007/978-3-030-37497-6_75

Cited by 6 publications

(10 citation statements)

References 9 publications

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“…The dashed line shows the control result of the modified controller, and the dot-dash line shows the control result achieved by the control system using the proportional valves [12]. The results indicate that the modified controller can provide equivalent control errors to those of the controller in [12]. The maximum errors in steady state of both controllers are less than 6 mm.…”

Section: Control Resultsmentioning

confidence: 96%

“…The control results are obtained with a sinusoidal desired position x1d = 150 + 100sin (2πft) mm with frequency f = 0.1 Hz. The dashed line shows the control result of the modified controller, and the dot-dash line shows the control result achieved by the control system using the proportional valves [12]. The results indicate that the modified controller can provide equivalent control errors to those of the controller in [12].…”

Section: Control Resultsmentioning

confidence: 97%

“…While, for the controller in [11], the piston moves jerkily and creates large control error (maximum error in steady state is 22 mm). To further evaluate the usefulness of the modified controller, the control performances of the modified controller are compared with those obtained by a controller for a pneumatic system using pneumatic proportional valves in [12]. In [12], the position control system using two pneumatic proportional valves and a multi-surface sliding control method combined with friction compensation was applied.…”

Section: Control Resultsmentioning

confidence: 99%

“…Fig. 8 shows the comparison of the control performance between the modified controller and the controller in [12]. The control results are obtained with a sinusoidal desired position x1d = 150 + 100sin (2πft) mm with frequency f = 0.1 Hz.…”

Section: Control Resultsmentioning

confidence: 99%

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A Method for Improving Position Control Performances of a Pneumatic Cylinder Using On-Off Solenoid Valves

2022

JST: SSAD

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Technology using on-off solenoid valves is currently being applied in controlling pneumatic actuators to replace the use of the pneumatic proportional/servo valves. However, controlling the pneumatic actuators using on-off solenoid valves is often difficult due to the low switching frequency of these valves and the high nonlinearity of the pneumatic system. In this paper, we first re-evaluate a controller proposed by Truong in 2020, in which four pneumatic on-off valves were used. We then modify the Truong's controller by dividing the desired position input of the cylinder into two controlled position intervals and each interval will use a separate control law. Seven operating modes of the four on-off solenoid valves combined with the Pulse Width Modulation method (PWM) are used. The experimental research method is carried out. The modified controller is evaluated by comparing it with the Truong’s controller and a controller for a pneumatic system using pneumatic proportional valves at the same conditions of the desired position inputs. Comparison results verify the usefulness of the modified controller.

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Section: Control Resultsmentioning

confidence: 96%

Section: Control Resultsmentioning

confidence: 97%

Section: Control Resultsmentioning

confidence: 99%

Section: Control Resultsmentioning

confidence: 99%

See 2 more Smart Citations

A Method for Improving Position Control Performances of a Pneumatic Cylinder Using On-Off Solenoid Valves

2022

JST: SSAD

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“…This research was an extension of the work in [31]. This research was funded by the Hanoi University of Science and Technology (HUST) under Project number T2020-PC-014.…”

Section: Acknowledgementsmentioning

confidence: 99%

Nonlinear Control of a Pneumatic Actuator Based on a Dynamic Friction Model

Tran

2021

SV-JME

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This paper presents a new controller for the position of a pneumatic actuator. The controller is designed based on the multiple-surface sliding control method in combination with a frictional compensator. The multiple-surface sliding control method is applied to deal with the nonlinear characteristics of the pneumatic system, and the frictional compensator is applied to compensate for the friction force in the pneumatic actuator. The friction force is estimated based on a dynamic friction model (the LuGre model). Both simulation and experimental studies are done to evaluate the new controller. The evaluation results indicate significant improvement in the tracking position error of the new controller comparing to the multiple-surface sliding controller without friction compensation and other nonlinear controllers.

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An Experimental Study on Position Control of Pneumatic Cylinder Using Programmable Logic Controller and Pneumatic Proportional Valves

Pham

Tran

2022

The AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering

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Sliding Mode Control for a Pneumatic Servo System with Friction Compensation

Cited by 6 publications

References 9 publications

A Method for Improving Position Control Performances of a Pneumatic Cylinder Using On-Off Solenoid Valves

A Method for Improving Position Control Performances of a Pneumatic Cylinder Using On-Off Solenoid Valves

Nonlinear Control of a Pneumatic Actuator Based on a Dynamic Friction Model

An Experimental Study on Position Control of Pneumatic Cylinder Using Programmable Logic Controller and Pneumatic Proportional Valves

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