With the improvements in Diesel engine injection systems, the fueling-path, which is more accurate, flexible, and faster than the air-path, can be actively utilized in conventional and advanced combustion mode controls, especially for enhancing the combustion transient performance. In this paper, fuel injection split models are proposed to describe the relationship between fuel split ratio and two combustion outputs, i.e., the crank angle at 50% heat released (CA50) and the indicated mean effective pressure (IMEP). The model parameters are related to the engine in-cylinder thermal boundary conditions, referred to as the in-cylinder conditions (ICCs). The models were verified by engine experimental data with identical and different ICCs under different engine operating conditions. Such models can be potentially utilized in active fueling control for Diesel engine combustion control, and therefore benefit engine fuel efficiency and reduce engine-out emissions.

References

References
1.
Li
,
J.
,
Chae
,
J. O.
,
Lee
,
S. M.
, and
Jeong
,
J. S.
,
1996
, “
Modeling the Effects of Split Injection Scheme on Soot and NO Emissions of Direct Injection Diesel Engines by a Phenomenological Combustion Model
,” SAE Paper No. 962062, pp.
169
174
.
2.
Yan
,
F.
, and
Wang
,
J.
,
2011
, “
Common Rail Injection System Iterative Learning Control Based Parameter Calibration for Accurate Fuel Injection Quantity Control
,”
Int. J. Autom. Technol.
,
12
(
2
), pp.
149
157
.10.1007/s12239-011-0019-7
3.
Yan
,
F.
, and
Wang
,
J.
,
2012
, “
Fuel Injection Split Model for Diesel Engine Advanced Combustion Mode Control
,”
Proceedings of the 2012 Dynamic Systems and Control Conference
, pp.
1888
1894
.
4.
Cao
,
L.
,
Zhao
,
H.
,
Jiang
,
X.
,
2007
, “
Investigation Into Controlled Auto-Ignition Combustion in a GDI Engine With Single and Split Fuel Injections
,” SAE Paper No. 2007-01-0211, pp.
1
21
.
5.
Muller
,
E.
, and
Weiskirch
,
C.
,
2007
, “
Advances in Diesel Engine Combustion: Split Combustion
.” SAE Paper No. 2007-01-0178.
6.
Yan
,
F.
, and
Wang
,
J.
,
2012
, “
Air- and Fuel-Path Coordinated Control for Advanced Combustion Mode Transitions in Diesel Engines
,”
Proceedings of 2012 American Control Conference
, pp.
2890
2895
.
7.
Olsson
,
J.-O.
,
Tunestål
,
P.
, and
Johansson
,
B.
,
2001
, “
Closed-Loop Control of an HCCI Engine
,” SAE Paper No. 2001-01-1031.
8.
Ravi
,
N.
,
Liao
,
H.-H.
,
Jungkunz
,
A. F.
,
Song
,
H. H.
, and
Gerdes
,
J. C.
,
2012
, “
Modeling and Control of Exhaust Recompression HCCI
,”
IEEE Control Syst. Mag.
,
32
(
4
), pp.
26
42
.10.1109/MCS.2012.2194840
9.
Yan
,
F.
, and
Wang
,
J.
,
2009
, “
Enabling Air-Path Systems for Homogeneous Charge Compression Ignition (HCCI) Engine Transient Control
,”
Proceedings of the 2009 ASME Dynamic Systems and Control Conference
, pp.
873
880
.
10.
Yan
,
F.
, and
Wang
,
J.
,
2012
, “
Design and Robustness Analysis of Discrete Observers for Diesel Engine In-Cylinder Oxygen Mass Fraction Cycle-by-Cycle Estimation
,”
IEEE Trans. Control Syst. Technol.
,
20
(
1
), pp.
72
83
.10.1109/TCST.2010.2104151
11.
Heywood
,
J. B.
,
1988
, “
Internal Combustion Engine Fundamentals
,”
McGraw-Hill
,
New York
, pp.
43
47
.
12.
Frederic
,
A.
, and
Troy
,
M.
,
1985
, “
Engine Combustion Control With Ignition Timing by Pressure Ratio Management
,” U.S. Patent No. 4,622,939.
13.
Brunt
,
M. F. J.
and
Emtage
,
A. L.
,
2010
, “
Evaluation of IMEP Routines and Analysis Errors
,” SAE Paper No. 960609.
14.
Shaver
,
G. M.
,
Roelle
,
M.
, and
Gerdes
,
J. C.
,
2005
, “
Decoupled Control of Combustion Timing and Work Output in Residual-Affected HCCI Engines
,”
Proceedings of the 2005 American Control Conference
, pp.
3871
3876
.
15.
Yan
,
F.
, and
Wang
,
J.
,
2013
, “
A Control-Oriented Model for Dynamics from Fuel Injection Profile to Intake Gas Conditions in Diesel Engines
,”
ASME Trans. J. Dyn. Syst., Meas., Control
,
135
, p.
051015
.10.1115/1.4024391
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