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- Title
Electromagnetic Valve Control in Internal Combustion Engines by PID.
- Authors
Sharifi, Hossein; Ghafori, Hasan; Chalshotori, Behrouz Sadeghian
- 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.
- Subjects
AUTOMATIC control systems; ELECTROMAGNETIC actuators; VIBRATION (Mechanics); SOLENOIDS; MECHANICAL engineering
- Publication
Majlesi Journal of Electrical Engineering, 2017, Vol 11, Issue 4, p21
- ISSN
2345-377X
- Publication type
Article