This paper describes an accurate, flexible, and computationally efficient whole engine model incorporating a multizone, quasidimension combustion submodel for a 6.7-l six-cylinder turbocharged diesel engine with cooled exhaust gas recirculation (EGR), cooled air, and multiple fuel injections. The engine performance and NOx emissions predicative capability of the model is demonstrated at 22 engine operating conditions. The only model inputs are physical engine control module “control actions,” including injection rates, injection timings, EGR valve position, and variable geometry turbocharger rack position. The model is run using both “open” and “closed” loop control strategies for air/EGR path control, in both cases achieving very good correlation with experimental data. Model outputs include in-cylinder pressure and heat release, torque, combustion timing, brake specific fuel consumption, EGR flow rate, air flow rate, exhaust and intake pressure, and NOx emissions. The model predicts engine performance and emissions with average absolute errors within 5% and 18%, respectively, of true values with “open-loop” air/EGR control, and within 5% and 11% with “closed-loop” air/EGR control. In addition, accurate prediction of the coupling of the in-cylinder combustion and emission-production processes with the boosted, cooled air/EGR gas dynamics is a key characteristic of the model.

1.
Eckerle
,
W. A.
, and
Stanton
,
D. W.
, 2006, “
Analysis-Led Design Process for Cummins Engine Development
,”
THIESEL
.
2.
Jung
,
D.
, and
Assanis
,
D.
, 2001, “
Multi-Zone DI Diesel Spray Combustion Model for Cycle Simulation Studies of Engine Performance and Emissions
,” SAE Paper No. 2001-01-1246.
3.
Bohbot
,
J.
,
Zolver
,
M.
,
Klahr
,
D.
, and
Torres
,
A.
, 2003,
Three Dimensional Modelling of Combustion in a Direct Injection Diesel Engine Using a New Unstructured Parallel Solver
,
ICCSA
,
Montreal, Canada
, pp.
483
492
.
4.
Gao
,
Z.
, and
Schreiber
,
W.
, 2001, “
A Phenomenologically Based Computer Model to Predict Soot and NOx Emission in a Direct Injection Diesel Engine
,”
Int. J. Engine Res.
1468-0874,
2
(
3
), pp.
177
182
.
5.
Yoshizaki
,
T.
,
Nishida
,
K.
, and
Hiroyasu
,
H.
, 1993, “
Approach to Low NOx and Smoke Emission Engines by Using Phenomenological Simulation
,” SAE Paper No. 930612.
6.
He
,
Y.
,
Lin
,
C-C.
, and
Gangopadhyay
,
A.
, 2006, “
Integrated Simulation of the Engine and Control System of a Turbocharged Diesel Engine
,” SAE Paper No. 2006-01-0439.
7.
Zhou
,
P.
,
Zhou
,
S.
, and
Clelland
,
D.
, 2006, “
A Modified Quasi-Dimensional Multi-Zone Combustion Model for Direct Injection Diesels
,”
Int. J. Engine Res.
1468-0874,
7
, pp.
335
345
.
8.
Morel
,
T.
, and
Wahiduzzaman
,
S.
, 1996, “
Modeling of Diesel Combustion and Emissions
,”
XXVI FISITA Congress
.
9.
Tan
,
P. Q.
,
Deng
,
K. Y.
, and
Lu
,
J. X.
, 2004, “
Predicting PM Emissions From Direct Injection Diesel Engines Using a Phenomenological Model
,”
J. Energy Inst.
1743-9671,
77
, pp.
68
75
.
10.
Cui
,
Y.
,
Deng
,
K.
, and
Wu
,
J.
, 2001, “
A Direct Injection Diesel Combustion Model for Use in Transient Condition Analysis
,”
Proc. Inst. Mech. Eng., Part D (J. Automob. Eng.)
0954-4070,
215
(
9
), pp.
995
1004
.
11.
Rakopoulos
,
C. D.
, and
Hountalas
,
D. T.
, 1998, “
Development and Validation of a 3-D Multi-Zone Combustion Model for the Prediction of DI Diesel Engines Performance and Pollutant Emissions
,” SAE Paper No. 981021.
12.
Mustafi
,
N. N.
, and
Raine
,
R. R.
, 2008, “
Application of a Spark Ignition Engine Simulation Tool for Alternative Fules
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
130
(
1
), p.
012804
.
13.
Cerri
,
T.
,
Onorati
,
A.
, and
Mattarelli
,
E.
, 2008, “
1D Engine Simulation of a Small HSDI Diesel Engine Applying a Predictive Combustion Model
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
130
(
1
), p.
012802
.
14.
Li
,
H.
, and
Karim
,
G. A.
, 2008, “
Modeling the Performance of a Turbo-Charged Spark Ignition Natural Gas Engine With Cooled Exhaust Gas Recirculation
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
130
(
3
), p.
032804
.
15.
Morel
,
T.
,
Keribar
,
R.
,
Silvestri
,
J.
, and
Wahiduzzaman
,
S.
, 1999, “
Integrated Engine/Vehicle Simulation and Control
,” SAE Paper No. 1999-01-0907.
16.
Ciesla
,
C.
,
Keribar
,
R.
, and
Morel
,
T.
, 2000, “
Engine/Powertrain/Vehicle Modeling Tool Applicable to All Stages of the Design Process
,” SAE Paper No. 2000-01-0934.
17.
Yoshizaki
,
T.
,
Nishida
,
K.
, and
Hiroyasu
,
H.
, 2004, “
Reduction of Heavy Duty Diesel Engine Emission and Fuel Economy With Multi-Objective Genetic Algorithm and Phenomenological Model
,” SAE Paper No. 2004–01–0531.
18.
Heywood
,
J. B.
, 1988,
Internal Combustion Engine Fundamentals
,
McGraw-Hill
,
New York
.
19.
Lavoie
,
G.
,
Heywood
,
J.
, and
Keck
,
J.
, 1970, “
Experimental and Theoretical Investigation of Nitric Oxide Formation in Internal Combustion Engines
,”
Combust. Sci. Technol.
0010-2202,
1
, pp.
313
326
.
20.
Chan
,
M.
,
Das
,
S.
, and
Reitz
,
R.
, 1997, “
Modeling Multiple Injection and EGR Effects on Diesel Engine Emissions
,” SAE Paper No. 972864.
21.
He
,
Y.
, 2005, “
Development and Validation of a 1D Model of a Turbocharged V6 Diesel Engine Operating Under Steady-State and Transient Conditions
,” SAE Paper No. 2005-01-3857.
22.
Singh
,
S.
,
Reitz
,
R.
,
Musculus
,
M.
, and
Lachaux
,
T.
, 2007, “
Validation of Engine Combustion Models Against Detailed In-Cylinder Optical Diagnostics Data for a Heavy-Duty Compression-Ignition Engine
,”
Int. J. Engine Res.
1468-0874,
8
, pp.
97
126
.
You do not currently have access to this content.