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Journal of Dynamic Systems, Measurement, and Control | Volume 131 | Issue 1 | Technical Brief
Technical Briefs

Sensitivity Analysis of Combustion Timing of Homogeneous Charge Compression Ignition Gasoline Engines

[+] Author and Article Information
Chia-Jui Chiang

Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, 10607 R.O.Ccjchiang@mail.ntust.edu.tw

Anna G. Stefanopoulou

Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109annastef@umich.edu

J. Dyn. Sys., Meas., Control 131(1), 014506 (Dec 05, 2008) (5 pages) doi:10.1115/1.2936877 History: Received December 12, 2005; Revised February 29, 2008; Published December 05, 2008
Article
References
Figures
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Citing Articles

The goal of this paper is to identify the dominant factors that should be included in a control oriented model in order to predict the start of combustion in a homogeneous charge compression ignition (HCCI) engine. Qualitative and quantitative information on the individual effects of fuel and exhaust gas recirculation on the HCCI combustion is provided. Using sensitivity analysis around a wide range of operating conditions of a single-cylinder port-injection gasoline HCCI engine, we find that temperature is the dominant factor in determining the start of combustion. Charge temperature thus becomes the “spark” in a HCCI engine. Therefore, a model without the composition terms should be adequate for model based regulation of the combustion timing in a port-injection gasoline HCCI engine with high dilution from the exhaust.
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References

1
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2
Olsson, J. O., Tunestal, P., Johansson, B., Fiveland, S., Agama, R., Willi, M., and Assanis, D., 2002, “Compression Ratio Influence on Maximum Load of a Natural Gas Fueled HCCI Engine,” SAE Paper No. 2002-01-0111.
3
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4
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5
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6
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7
Chiang, C. J., and Stefanopoulou, A. G., 2005, “Control of Thermal Ignition in Gasoline Engines,” "Proceedings of the American Control Conference", pp. 3847–3852.
8
Babajimopoulos, A., Lavoie, G. A., and Assanis, D. N., 2007, “On the Role of Top Dead Center Conditions in the Combustion Phasing of Homogeneous Charge Compression Ignition Engines,” Combust. Sci. Technol., 179 (9), pp. 2039–2063.
9
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10
Chiang, C. J., 2007, “Modeling and Contorl of Homogeneous Charge Compression Ignition Engines With High Dilution,” Ph.D. thesis, The University of Michigan, Ann Arbor, MI.
11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
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23
Shaver, G., Roelle, M., and Gerdes, J., 2005, “Decoupled Control of Combustion Timing and Work Output in Residual-Affected HCCI Engines,” "Proceedings of the American Control Conference", pp. 3871–3876.
24
Caton, P. A., Song, H. H., Kaahaaina, N. B., and Edwards, C. E., 2005, “Strategies for Achieving Residual-Effected Homogeneous Charge Compression Ignition Using Variable Valve Actuation,” SAE Paper No. 2005-01-0165.

Figures

Grahic Jump Location
+Start of combustion: Test A and Test B for the Arrehnius integral with and without composition terms
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Start of combustion: Test A and Test B for the Arrehnius integral with and without composition terms
Figure 2

Start of combustion: Test A and Test B for the Arrehnius integral with and without composition terms

Grahic Jump Location
+Exhaust, intake and rebreathing valve profiles
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Exhaust, intake and rebreathing valve profiles
Figure 1

Exhaust, intake and rebreathing valve profiles

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