Electrohydraulic Proportional Metering Valve for Common Rail System

Yun, So-Nam; Ryu, Jae Seop; Ahn, Byoung Kyu; Kim, Go Do; Jo, Jung Hyun

doi:10.5739/isfp.2005.269

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…A moving-iron proportional solenoid actuator (MPSA) is an electromechanical conversion device vital for automatic control systems and is widely used in several fields, such as hydraulic systems [ 1 , 2 , 3 ], common rail systems with direct injection equipment in diesel engines [ 4 ], hydraulic braking actuators of automobile antilock braking systems (ABSs) [ 5 ], automatic transmission pressure control devices [ 6 ], and incremental sheet-metal-forming tools [ 7 ], owing to its simple structure, large driving force, and low price [ 8 , 9 ]. The electromagnetic force characteristics and dynamic response speed of the MPSA influence the driving ability and control accuracy of a control system [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…Bayat et al [ 9 ] analyzed the influence of the structural parameters of a pole shoe and various soft magnetic materials with different B–H curves, current density, and air gap sizes on the constant force characteristics of the MPSA. Yun et al [ 4 ] studied the effects of the gap between the plunger and control cone and the length and width of the control cone on the constant force characteristics of the MPSA for common rail systems in diesel engines. They optimized the shape of the control cone using the finite element method.…”

Section: Introductionmentioning

confidence: 99%

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Multi-Objective Optimization of a Long-Stroke Moving-Iron Proportional Solenoid Actuator

Liu,

Ouyang,

Quan

2023

Micromachines

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In this study, the performance of a long-stroke moving-iron proportional solenoid actuator (MPSA) was improved by combining numerical simulations and experiments. A finite element model of the MPSA was developed; its maximum and mean relative absolute errors of electromagnetic force were 4.3% and 2.3%, respectively, under typical work conditions. Seven design parameters including the cone angle, cone length, depth of the inner hole of the coil skeleton, cone width of the armature, inner cone diameter, and initial position of the moving-iron core were selected for developing the model, and the coefficient of the variation in electromagnetic force, nominal acceleration, 95% of the maximum stable output electromagnetic force, and corresponding response time were used as the performance indicators. The constraint relation between each performance indicator and the influence of each design parameter on the performance indicators were revealed using the uniform Latin hypercube experiment design, correlation analysis, and the main effect analysis method. A multi-objective optimization mathematical model of the MPSA was developed by combining traditional surrogate and machine learning models. The Pareto solution set was obtained using the nondominated sorting genetic algorithm II (NSGA-II), and three decision schemes with different attitudes were determined using the Hurwicz multi-criteria decision-making method. The results showed that a strong contradiction exists among the 95% of the maximum stable output electromagnetic force and its corresponding response time and the coefficient of the variation in electromagnetic force. The cone angle considerably influenced the performance indicators. Compared with the initial design, the coefficient of the variation in electromagnetic force was reduced by 54.08% for the positive decision, the corresponding response time was shortened by 15.65% for the critical decision, and the corresponding acceleration was enhanced by 10.32% for the passive decision. Thus, the overall performance of the long-stroke MPSA effectively improved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization of a Long-Stroke Moving-Iron Proportional Solenoid Actuator

Liu,

Ouyang,

Quan

2023

Micromachines

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Optimization for a proportional electro-magnet with high accuracy utilizing finite element method

Ling

Qiu

et al. 2021

JAE

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Obtaining the constant force at a given current benefits its applications in diverse fields. However, not depending on displacements, such a force characteristic is not available easily since this force is determined by a specific structure, materials, geometrical parameters and others. Therefore, utilizing the finite element method (FEM), the electro-magnet force of a proportional electro-magnet located at a semi-active damper is calculated considering different parameters, further obtaining better choices of crucial parameters for achieving the constant force and independence of displacements. Finally reflected through the maximum fluctuation of 0.82 N and the maximum error of 0.9 N compared to experimental results, a proportional electro-magnet with force characteristics of relatively high accuracy has been achieved.

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Comparative Analysis of Armature Structure on Constant Force Characteristics in Long-Stroke Moving-Iron Proportional Solenoid Actuator

Shang,

Liu,

Quan

et al. 2024

Actuators

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The influence of key design parameters on the constant force characteristics of long-stroke moving-iron proportional solenoid actuators (MPSAs) has been explored by a method combining finite element modelling and correlation analysis. First, the finite element model (FEM) of long-stroke MPSA was developed and validated. Subsequently, the two evaluation indexes, the average-output solenoid force and maximum-output solenoid force variability, were introduced to disclose the influence law of pole shoe parameters on the constant force characteristics of a long-stroke MPSA. After that, correlation analysis was employed to quantify the influence of several parameters and parameter interaction factors on the constant force characteristics. The results indicate a strong contradiction between the average-output solenoid force and maximum-output solenoid force variability; however, increasing the inner diameter of the cone helps enhance the average-output solenoid force without causing maximum-output solenoid force variability to increase. Among all the parameters examined, the cone angle is the most significant parameter affecting the constant force characteristics. Additionally, interactions between the cone angle and the cone length, the cone angle and the inner cone diameter, the cone angle and the outer cone diameter, the cone length and the outer cone diameter, as well as the inner cone diameter and the outer cone diameter also have an important influence on the constant force characteristics. This study deepens our understanding of how the key parameters affect the constant force characteristics and assists designers in optimizing these parameters for developing new structures.

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Electrohydraulic Proportional Metering Valve for Common Rail System

Cited by 3 publications

References 2 publications

Multi-Objective Optimization of a Long-Stroke Moving-Iron Proportional Solenoid Actuator

Multi-Objective Optimization of a Long-Stroke Moving-Iron Proportional Solenoid Actuator

Optimization for a proportional electro-magnet with high accuracy utilizing finite element method

Comparative Analysis of Armature Structure on Constant Force Characteristics in Long-Stroke Moving-Iron Proportional Solenoid Actuator

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