This paper presents a model of an electric variable valve timing (EVVT) system and its closed-loop control design with experimental validation. The studied EVVT uses a planetary gear system to control the engine cam timing. The main motivation of utilizing the EVVT system is its fast response time and the accurate timing control capability. This is critical for the combustion mode transition control between the spark ignition (SI) and homogeneous charge compression ignition (HCCI) combustion, where the engine cam timing needs to follow a desired trajectory to accurately control the engine charge and recompression process. A physics-based model was developed to study the characteristics of the EVVT system, and a control oriented EVVT model, with the same structure as the physics-based one, was obtained using closed-loop system identification. The closed-loop control strategies were developed to control the EVVT to follow a desired trajectory. Both simulation and bench test results are included.
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March 2014
Research-Article
Modeling and Control of an Electric Variable Valve Timing System
Zhen Ren,
Zhen Ren
1
Mem. ASME
Mechanical Engineering,
e-mail: renzhen@msu.edu and
zhen.ren@delphi.com
Mechanical Engineering,
Michigan State University
,East Lansing, MI 48824
e-mail: renzhen@msu.edu and
zhen.ren@delphi.com
1Present address: Delphi Powertrain Systems, Auburn Hills, MI 48326.
Search for other works by this author on:
Guoming G. Zhu
Guoming G. Zhu
2
Fellow ASME
Department of Mechanical Engineering,
Department of Electrical and
Computer Engineering, break/>
1497 Engineering Research Court,
e-mail: zhug@egr.msu.edu
Department of Mechanical Engineering,
Department of Electrical and
Computer Engineering, break/>
Michigan State University
,1497 Engineering Research Court,
Room E148
,East Lansing, MI 48824
e-mail: zhug@egr.msu.edu
2Corresponding author.
Search for other works by this author on:
Zhen Ren
Mem. ASME
Mechanical Engineering,
e-mail: renzhen@msu.edu and
zhen.ren@delphi.com
Mechanical Engineering,
Michigan State University
,East Lansing, MI 48824
e-mail: renzhen@msu.edu and
zhen.ren@delphi.com
Guoming G. Zhu
Fellow ASME
Department of Mechanical Engineering,
Department of Electrical and
Computer Engineering, break/>
1497 Engineering Research Court,
e-mail: zhug@egr.msu.edu
Department of Mechanical Engineering,
Department of Electrical and
Computer Engineering, break/>
Michigan State University
,1497 Engineering Research Court,
Room E148
,East Lansing, MI 48824
e-mail: zhug@egr.msu.edu
1Present address: Delphi Powertrain Systems, Auburn Hills, MI 48326.
2Corresponding author.
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received September 10, 2012; final manuscript received October 24, 2013; published online December 16, 2013. Assoc. Editor: Xubin Song.
J. Dyn. Sys., Meas., Control. Mar 2014, 136(2): 021015 (11 pages)
Published Online: December 16, 2013
Article history
Received:
September 10, 2012
Revision Received:
October 24, 2013
Citation
Ren, Z., and Zhu, G. G. (December 16, 2013). "Modeling and Control of an Electric Variable Valve Timing System." ASME. J. Dyn. Sys., Meas., Control. March 2014; 136(2): 021015. https://doi.org/10.1115/1.4025914
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