Abstract
In this research, the design of a new electromagnetic engine valve in the limited space of combustion engine is optimized by multidisciplinary simulation using MATLAB and Maxwell. An electromagnetic engine valve actuator using a permanent magnet is a new actuator concept for overcoming the inherent drawbacks of the conventional solenoid-driven electromagnetic engine valve actuator, such as high power consumption and so on. This study aims to maximize the vibration frequency of the armature to reduce the transition time of the engine valve. The higher performance of the new actuator is demonstrated by dynamic finite element analysis.
Highlights
Variable valve timing is a key technology in automobile combustion engines
They offered the highest flexibility in valve timing control, the solenoid-driven electromagnetic engine valve actuator suffers from an inherent problem of high-energy consumption for the operation of this system [4]
This paper presents the optimization of a newly designed electromagnetic engine valve actuator
Summary
Variable valve timing is a key technology in automobile combustion engines. It improves fuel efficiency by up to 15%, enhances torque output by up to 10% and reduces CO2 emission by up to 15% under different engine operating conditions [1,2]. In order to implement and design this system within the limited space of a combustion engine, there are numerous studies on solenoid-driven electromagnetic engine valves such as sensorless control, landing control and optimal design for the improvement of their performance. Chlandy and Koch designed a closed-loop controller near the valve stroke bounds for the soft landing using a model which identifies combustion gas force variation [8]. They offered the highest flexibility in valve timing control, the solenoid-driven electromagnetic engine valve actuator suffers from an inherent problem of high-energy consumption for the operation of this system [4]
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