Models of a Pneumatic PWM Solenoid Valve for Engineering Applications

Ye, N.; Scavarda, Serge; Bétemps, M.; Jutard, A.

doi:10.1115/1.2897741

Cited by 68 publications

(17 citation statements)

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“…The desired PWM signal can be realized by comparing the continuous control signal and a high-frequency carrier wave [15], as is illustrated in Fig. 4.…”

Section: Pneumatic Servodrive Control Systemmentioning

confidence: 99%

Adaptive Fuzzy Device Control Systems to Executive Bodies of Technological Machines and Robot With Pneumo-Actuator

Gburi¹

2016

Univ. News. N.-C. Reg. Techn. Sci. Ser.

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Abstract-Pneumatic driving systems are mainly used in industrial applications where the moving parts are usually fixed by the mechanical stops. For flexible and precise positioning tasks of pneumatic drives relatively expensive proportional valves have been implemented. In order to develop cheaper pneumatic servo systems, the employment of low-cost on/off solenoid valves have received considerable attention. But, the traditional technologies used in on/off solenoid valves manifest different problems caused by the electric and thermal effects, inertial forces of their mechanical parts and friction phenomenon. However, it seems that innovative technology used in fast switching solenoid valves gives better possibilities in control of pneumatic systems due to their negligible internal friction and modular architecture. In this paper a control method based on pulse-width-modulation algorithm for position control of a pneumatic actuator with high-speed solenoid valve is considered and experimentally verified.

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“…The desired PWM signal can be realized by comparing the continuous control signal and a high-frequency carrier wave [15], as is illustrated in Fig. 4.…”

Section: Pneumatic Servodrive Control Systemmentioning

confidence: 99%

Adaptive Fuzzy Device Control Systems to Executive Bodies of Technological Machines and Robot With Pneumo-Actuator

Gburi¹

2016

Univ. News. N.-C. Reg. Techn. Sci. Ser.

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“…The precise pressure control was achieved by the amount of air supplied through the solenoid valve. The mathematical model of the valve [15,16] can be defined by the mass flow ( ) m supplied through the valve and is expressed as (7):…”

Section: Nozzle Modeling and Verificationmentioning

confidence: 99%

Modeling and simulation of powered hip orthosis by pneumatic actuators

Kim

Kang

Cho

et al. 2010

Int. J. Control Autom. Syst.

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In this study, a simulation model for a powered hip orthosis (PHO) with air muscles to predict the gait of paraplegics is presented which can be used as a design tool for hip orthoses. Before simulation, mathematical models for a human dummy with an orthosis and a pneumatic muscle actuator were generated. For the air muscle, coefficients required were obtained by static and dynamic experiments of the air muscle and experiments for the valve controlling the air pressure. The computation was conducted on the ADAMS package together with MATLAB. Computer simulation of the flexion of hip joints by the pneumatic muscle results in similar values to those from gait analysis. With the development of a simulation model for a PHO, the gait simulation model using pneumatic muscles can be used to analyze and evaluate the characteristics and efficiency of a PHO by setting the input and boundary conditions.

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“…Some efforts for analytical modeling of pneumatic actuators, valves and friction can be found in [8][9][10][11][12][13]. Model identification was also studied in some papers like [14] in which a linear digital model was identified and a digital PID controller was designed.…”

Section: Introductionmentioning

confidence: 99%