Electromagnetic Valve Control in Internal Combustion Engines by PID

  • Hossein Sharifi Department of electrical engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran
  • Hasan Ghafori Department of Advanced Engineering Research, Majlesi Branch, Islamic Azad University, Isfahan, Iran
  • Behrooz Sadeghian Department of Aerospace Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran
Keywords: Electromagnetic poppet valve actuator, Variable poppet valve timing system, Magnetic capacity, PID controller

Abstract

Engines with variable poppet valve timing systems are among numerous efforts that aim to reduce engine emissions and/or increase efficiency. In the present paper we have investigated the stability of a magnetic valve system in MATLAB. First we designed the magnet and interactive forces inside the electromagnetic valve system, then we produced a mechanical model for the system by using a two degree of freedom mass and spring system and finally designed a PID controller to maintain system stability. The results of the present study indicate that the controller had decreased the maximum valve displacement domain and duration from 2 mm to 0.001 mm and 0.1 seconds to 0.022 seconds, respectively. Poppet valve settling speed was 0.0126 and had a standard deviation of 0.1304 while the armature settling speed was 0.0184, with a standard deviation of 0.1363. Passes for the phases were -37.5 and -169, with gains of 10.3 and -9.35.

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Published
2017-12-04
How to Cite
Sharifi, H., Ghafori, H., & Sadeghian, B. (2017). Electromagnetic Valve Control in Internal Combustion Engines by PID. Majlesi Journal of Electrical Engineering, 11(4), 21-26. Retrieved from http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/2046
Section
Articles