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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
Tables
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
Chiang, C. J., and Stefanopoulou, A. G., 2006, “Sensitivity Analysis of Combustion Timing and Duration of Homogeneous Charge Compression Ignition (HCCI) Engines,” "Proceedings of the American Control Conference", pp. 1857–1862.
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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