Experimental study and numerical analysis on electromagnetic force of direct action solenoid valve

Liu, Qianfeng; Bo, Hanliang; Qin, Benke

doi:10.1016/j.nucengdes.2010.09.028

Cited by 30 publications

(10 citation statements)

References 2 publications

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“…where P c is the control pressure of the valve, and A 1 is the area of the left end on the spool. The electromagnetic force of the solenoid valve is actuated by the applied voltage and can be expressed by simplified as [3], [6]:…”

Section: Nominal Dynamic Model Of Psvmentioning

confidence: 99%

Fuzzy-Type Fast Terminal Sliding-Mode Controller for Pressure Control of Pilot Solenoid Valve in Automatic Transmission

Fan

Cheng

et al. 2019

IEEE Access

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The performance of the pilot solenoid valve (PSV) has a significant impact on the efficiency and service life of an automatic transmission (AT) in automobiles, and it is very difficult to achieve a perfect pressure tracking performance due to the sophisticated combination of mechanical, hydraulic and electromagnetic characteristics inside the PSV. In this paper, based on a nominal nonlinear dynamic model of the PSV including uncertainties and an external disturbance, a fast terminal sliding-mode control (FTSMC) method is developed to achieve tracking precision and robustness in the pressure control of the PSV. To alleviate the chattering phenomenon in the control input signal, fuzzy logic rules are established to tune the switching control coefficient of the control law in FTSMC controller. Compared with the trend-law-based sliding-mode control (TLSMC) method and PID method, the developed fuzzy-type fast terminal slidingmode control (F-FTSMC) method achieves the shortest settling time, the smallest tracking error at steady state and almost no chattering in the control input by intelligently changing the control law. Simulations and experiments are demonstrated to verify the effectiveness and excellent advantages of the proposed controller. INDEX TERMS Fast terminal sliding mode control, fuzzy control, pressure control, pilot solenoid valve, automatic transmission.

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Section: Nominal Dynamic Model Of Psvmentioning

confidence: 99%

Fuzzy-Type Fast Terminal Sliding-Mode Controller for Pressure Control of Pilot Solenoid Valve in Automatic Transmission

Fan

Cheng

et al. 2019

IEEE Access

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show abstract

“…where is the elasticity and the value is 5.8; is the slope of the movement and is set to 1; F s,max is the maximal static friction force and assumed to be 2.4 N in this paper; and sgn dx dt depicts the direction of the displacement. Combining expressions (13) and (14), we obtain the static friction coefficient f S .…”

Section: Modeling and Dynamic Analysismentioning

confidence: 99%

“…The number of coil turns, working air gap, drive current and armature thickness are key factors that affect the electromagnetic characteristics; these parameters and their interaction have been proven to have complex and varied effects on the electromagnetic force in previous studies [12,13]. With some simplifying assumptions, the mathematical model of the electromagnetic force is given by [8,14] where m is the magnetic permeability of the medium, which is also a constant here; A m is the area of the magnetic field; N is the number of turns of the coil; and I s is the supply current. Considering the magnetic flux leakage in the magnetic circuit that results in a part of the magnetic potential of the coil in the working air gap, k f is used as the magnetic flux…”

Section: Modeling and Dynamic Analysismentioning

confidence: 99%

“…A novel control algorithm, which is used to decrease the pressure hysteresis by the control drive current pulsating quantity in a proportional solenoid valve, was presented in [13]. To obtain a larger electromagnetic force and a short operation time of a control rod hydraulic drive mechanism, the electromagnetic force of the directaction solenoid valve was analyzed in [14]. In [15], a new and accurate mathematical model of a magnetically actuated butterfly valve was derived depending on the characteristics of the electric circuit and mechanical subsystem.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and dynamic analysis of a pilot-operated pressure-regulating solenoid valve used in automatic transmission with bond graphs

Fan

Mei

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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The pilot-operated pressure-regulating solenoid valve (PPRSV) is a key component of the automatic transmission (AT) in automobiles, and its performance significantly affects the efficiency and service lift of the AT and even road safety. However, few studies are devoted to the mathematical model of the PPRSV, and there is especially a lack of test equipment to verify its pressure control performance. Thus, the goal of this study is to find an effective and convenient modeling method and to verify the correctness of the model through simulations and experimentation. The bond graphs method, which is widely utilized to study hydraulic dynamics because it can easily identify the parameter process and consider the interactions in a hydraulic system, is selected here to help develop the numerical model of the PPRSV. The effective bulk modulus of hydraulic fluid was dynamically analyzed by considering the effect of the temperature, pressure and entrapped air. To consider the time delays of the electrical actuation and spool motion, the time delay element and Kirchhoff's and Ohm's laws are emphatically discussed to show the nonlinearity of forces. In addition, the Dahl model was used to more clearly express the static friction force to examine the hysteresis of the valve pressure. The comparative simulated and experimental studies confirm that the developed model can be used to study the control performance of the PPRSV, and the modeling method developed in this paper is feasible and handy.

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“…Control rod hydraulic drive mechanism (CRHDM) of Institute of Nuclear and New Energy Technology, Tsinghua University innovates the mechanical structure. Its key part consists of three linear electromagnetic valves, so that it can obtain a large electromagnetic force in a short time [19]. In addition, new materials such as piezoelectric ceramics (PTZ) and giant magnetostrictive material (GMM) are selected.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and Static Characteristics of Double Push Rods Electromechanical Converter

Wang

Quan

Luan

et al. 2019

Chin. J. Mech. Eng.

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Due to the influence of material characteristics and winding power, single output electromagnet has limited ability to improve the dynamic characteristic of electro-hydraulic valve. Therefore, an electromechanical converter with double push rods is proposed in this paper, which can simultaneously output two electromagnetic forces, can push or pull the valve core and sleeve according to the current direction and realize rapid operation of load. According to the electromagnetic principle and the magnetic circuit analysis method, the mathematical model and equivalent circuit of the electromechanical converter with double push rods are established. Through the finite element simulation model of the electromechanical converter with double push rods with the same magnetization directions, the changing rules of its magnetic field distribution and force-displacement behaviors are studied and analyzed. According to the analysis results, the electromagnetic mechanical parameters and mechanical structure of the electromechanical converter with double push rods are determined, and the prototype is made. The test platform for the push-pull characteristics of the electromechanical converter with double push rods is built, and its static and dynamic characteristics are tested and analyzed. The results show that the thrust and pull output characteristics of the internal and external push rods are basically consistent with the simulation output, and proportional to the current density of the coil; the push-pull hysteresis of internal and external push rods output force is less than 5%; and the dynamic time response characteristics of the displacement and force are obtained. The hysteresis effect of output force is improved effectively through the H bridge drive control circuit modulated by PWM. Compared with the displacement response of a singlewinding electromagnet with a similar volume, it can effectively improve the dynamic displacement response. Followup work will further optimize the structure of the electromechanical converter and test the corresponding pilot valve. The research results provide a new theory for improving the output characteristics of electro-hydraulic pilot valve and have an extremely high engineering application value and broad application prospect.

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Experimental study and numerical analysis on electromagnetic force of direct action solenoid valve

Cited by 30 publications

References 2 publications

Fuzzy-Type Fast Terminal Sliding-Mode Controller for Pressure Control of Pilot Solenoid Valve in Automatic Transmission

Fuzzy-Type Fast Terminal Sliding-Mode Controller for Pressure Control of Pilot Solenoid Valve in Automatic Transmission

Modeling and dynamic analysis of a pilot-operated pressure-regulating solenoid valve used in automatic transmission with bond graphs

Dynamic and Static Characteristics of Double Push Rods Electromechanical Converter

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