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Mathematical Problems in Engineering
Volume 2017, Article ID 9078598, 10 pages
Research Article

Investigation on Electromagnetic Models of High-Speed Solenoid Valve for Common Rail Injector

1College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
2College of Power Engineering, Bauman State Technical University, Moscow 115569, Russia

Correspondence should be addressed to Liyun Fan; moc.361@10_ylnaf

Received 26 December 2016; Revised 10 April 2017; Accepted 20 April 2017; Published 12 June 2017

Academic Editor: Francesco Braghin

Copyright © 2017 Jianhui Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A novel formula easily applied with high precision is proposed in this paper to fit the - curve of soft magnetic materials, and it is validated by comparison with predicted and experimental results. It can accurately describe the nonlinear magnetization process and magnetic saturation characteristics of soft magnetic materials. Based on the electromagnetic transient coupling principle, an electromagnetic mathematical model of a high-speed solenoid valve (HSV) is developed in Fortran language that takes the saturation phenomena of the electromagnetic force into consideration. The accuracy of the model is validated by the comparison of the simulated and experimental static electromagnetic forces. Through experiment, it is concluded that the increase of the drive current is conducive to improving the electromagnetic energy conversion efficiency of the HSV at a low drive current, but it has little effect at a high drive current. Through simulation, it is discovered that the electromagnetic energy conversion characteristics of the HSV are affected by the drive current and the total reluctance, consisting of the gap reluctance and the reluctance of the iron core and armature soft magnetic materials. These two influence factors, within the scope of the different drive currents, have different contribution rates to the electromagnetic energy conversion efficiency.