A custom-designed limited-angle actuator for an electromechanical engine valve drive Part II: Fabrication and evaluation
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Kassakian_A custom-designed part II.pdf
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Author(s)
Kassakian, John G.
Keim, Thomas A.
Perreault, David J.
Qiu, Yihui
Date Issued
April 2010
Journal
Proceedings of the 5th IET International Conference onPower Electronics, Machines and Drives (PEMD 2010)
Publisher
Institution of Engineering and Technology
Citation
Yihui Qiu et al. “A Custom-designed Limited-angle Actuator for an Electromechanical Engine Valve Drive. Part II: Fabrication and Evaluation.” IET, 2010. WE242–WE242. © 2010 The Institution of Engineering and Technology
Version
Final published version
Abstract
Research has shown that variable valve timing (VVT) can improve significantly the performance of internal combustion (IC) engines, including higher fuel efficiencies, lower emissions, and larger torque outputs at each point of the engine map. To achieve independent and continuous VVT for each valve, an electromechanical valve drive (EMV) system with a custom-designed limited-angle actuator was proposed previously, whose feasibility with lower power consumption, smaller package, and faster transition was predicted by simulation. In order to validate the concept experimentally, a prototype actuator was built and evaluated in this paper. The fabrication considerations and assembling process of the prototype actuator are discussed before satisfactory experimental results of the whole EMV system with the prototype actuator are presented. A further projection for a full engine valve actuation illustrates a promising future of the EMV system with the limited-angle actuator in a real engine environment up to an engine speed of 6000 rpm.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems
Massachusetts Institute of Technology. Microsystems Technology Laboratories
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1049/cp.2010.0193
