Abstract
A 3D numerical simulation model of high-speed solenoid valve (HSV) for electronic control fuel injection system (ECFIS) has been developed. The model has been validated experimentally with acceptable maximum errors of 2% and 8.7% in closure response time and open response time, respectively. Effect of assembly parameters such as residual air gap, maximum lift of valve stem, mass of the moving parts, spring stiffness, and spring pretightening force on dynamic response characteristics of HSV has been analyzed in detail using the simulation model, and influence rules of various parameters on dynamic response characteristics have been established. Moreover, the correlation between interaction factors of main influence factors and dynamic response characteristics of HSV has also been analyzed. It is concluded that residual air gap, maximum lift of the valve stem, and spring pretightening force are the main influencing factors on dynamic response characteristics of HSV, and there are obvious interaction effects between them; when two or three of these main influencing factors are adjusted at the same time, the interaction effects should be considered.
Highlights
With the continuous development of electronic control technology for diesel engines, the electronic control fuel injection system has become an inevitable trend to meet the requirements of increasingly stringent diesel emission regulations [1,2,3,4]
Fluctuations in the quantity and timing of fuel injection greatly affect the combustion process in the cylinder of diesel engine in terms of economy, power, and emission performance of diesel engine. erefore, research in the field of dynamic response characteristics of high-speed solenoid valve (HSV) is of significant importance for electronic control fuel injection system (ECFIS)
Research work carried out in this paper decisively provides some theoretical guidance for the selection of parameters and optimal match of HSV
Summary
With the continuous development of electronic control technology for diesel engines, the electronic control fuel injection system has become an inevitable trend to meet the requirements of increasingly stringent diesel emission regulations [1,2,3,4]. Yin et al [9] developed the multiphysical field coupling model of solenoid valve for gasoline direct injection considering the electric, magnetic, and thermal properties employing the finite element method and optimized the armature, core, and coil structure parameters based on the multiobjective-simulated annealing algorithm. Detailed analysis of interaction effects between different system factors and their influence on dynamic response characteristics of HSV still required to be investigated thoroughly. We have used the numerical simulations along with lab experiments to analyze in detail the influence of assembly parameters on dynamic response characteristics of HSV. The parametric influence on dynamic response characteristics of HSV were analyzed using the numerical model, and the key influential assembly parameters were obtained.
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