Nonlinear System Modeling, Optimal Cam Design, and Advanced System Control for an Electromechanical Engine Valve Drive

Author(s)
Qiu, Yihui; Perreault, David J.; Keim, Thomas A.; Kassakian, John G.
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Abstract
A cam-based shear force-actuated electromechanical valve drive system offering variable valve timing in internal combustion engines was previously proposed and demonstrated. To transform this concept into a competitive commercial product, several major challenges need to addressed, including the reduction of power consumption, transition time, and size. As shown in this paper, by using nonlinear system modeling, optimizing cam design, and exploring different control strategies, the power consumption has been reduced from 140 to 49 W (65%), the transition time has been decreased from 3.3 to 2.7 ms (18%), and the actuator torque requirement has been cut from 1.33 to 0.30 N·m (77%).
Date issued
2011-07
URI
http://hdl.handle.net/1721.1/87095
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
Journal
IEEE/ASME Transactions on Mechatronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Qiu, Yihui, David J. Perreault, Thomas A. Keim, and John G. Kassakian. “Nonlinear System Modeling, Optimal Cam Design, and Advanced System Control for an Electromechanical Engine Valve Drive.” IEEE/ASME Transactions on Mechatronics 17, no. 6 (n.d.): 1098–1110.
Version: Author's final manuscript
ISSN
1083-4435
1941-014X
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