Basic study on high precision positioning in electromagnetic valve drive system for improving internal combustion engine using linear actuator

Issue title: 20th International Symposium on Applied Electromagnetics and Mechanics

Guest editors: Theodoros Theodoulidis, Christos Antonopoulos, Nikolaos Kantartzis, Ioannis Rekanos and Theodoros Zygiridis

Article type: Research Article

Authors: Kuroda, Jumpei^a | Majima, Yuhei^a | Ogawa, Kazuki^b | Ikeda, Keigo^c | Kato, Taro^d | Endo, Ayato^e | Narita, Takayoshi^f; | Kato, Hideaki^f

Affiliations: [a] Course of Mechanical Engineering, Tokai University, Hiratsuka, Kanagawa, Japan | [b] Course of Science and Technology, Tokai University, Hiratsuka, Kanagawa, Japan | [c] Department of Mechanical Engineering, Hokkaido University of Science, Sapporo, Hokkaido, Japan | [d] Department of Mechanical Engineering, Tokyo University of Technology, Hachioji, Tokyo, Japan | [e] Department of Electrical Engineering, Fukuoka Institute of Technology, Higashi-Ku, Fukuoka, Japan | [f] Course of Prime Mover Engineering, Tokai University, Hiratsuka, Kanagawa, Japan

Correspondence: [*] Corresponding author: Takayoshi Narita, Course of Prime Mover Engineering, Tokai University, Hiratsuka, Kanagawa, Japan E-mail: narita@tsc.u-tokai.ac.jp

Abstract: In recent years, further improvements in the performance of internal combustion engines to reduce environmental burden have been demanded. The combustion state of an engine is affected by the parameters of the dynamic valve system, such as the opening/closing timing and the lift of the intake and exhaust valves. Therefore, we investigate an electromagnetic valve-drive system in this study. Two models are created to improve the magnetic circuit and increase thrust. To investigate the thrust characteristics of these actuators, an electromagnetic field analysis is conducted using the finite element method. Meanwhile, to investigate the effect of the yoke material on the thrust, an electromagnetic field analysis is performed based on materials with different saturation magnetic flux densities and magnetic permeabilities.

Keywords: Linear motor, linear actuator, voice coil motor, electromagnetic valve drive system, EVDS, electromagnetic

DOI: 10.3233/JAE-220174

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 71, no. S1, pp. S333-S341, 2023