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Development of an Integrated Virtual Engine Model to Simulate New Standard Testing Cycles
Technical Paper
2018-01-1413
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The combination of more strict regulation for pollutant and CO2 emissions and the new testing cycles, covering a wider range of transient conditions, makes very interesting the development of predictive tools for engine design and pre-calibration. This paper describes a new integrated Virtual Engine Model (VEMOD) that has been developed as a standalone tool to simulate new standard testing cycles. The VEMOD is based on a wave-action model that carries out the thermo-and fluid dynamics calculation of the gas in each part of the engine. In the model, the engine is represented by means of 1D ducts, while the volumes, such as cylinders and reservoirs, are considered as 0D elements. Different sub-models are included in the VEMOD to take into account all the relevant phenomena. Thus, the combustion process is calculated by the Apparent Combustion Time (ACT) 1D model, responsible for the prediction of the rate of heat release and NOx formation. Experimental correlations are used to determine the rest of pollutants. In order to predict tailpipe pollutant emissions to the ambient, different sub-models have been developed to reproduce the behavior of the aftertreatment devices (DOC and DPF) placed in the exhaust system. Dedicated friction and auxiliaries sub-models allow obtaining the brake power. The turbocharger consists of 0D compressor and turbine sub-models capable of extrapolating the available maps of both devices. The VEMOD includes coolant and lubricant circuits linked, on the one hand, with the engine block and the turbocharger through heat transfer lumped models; and on the other hand with the engine heat exchangers. A control system emulating the ECU along with vehicle and driver sub-models allow completing the engine simulation. The Virtual Engine Model has been validated with experimental tests in a 1.6 L Diesel engine using steady and transient tests in both hot and cold conditions. Engine torque was predicted with a mean error of 3 Nm and an error below 14 Nm for 90 % of the cycle duration. CO2 presented a mean error of 0.04 g/s, while during 80 % of the cycle, error was below 0.44 g/s.
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Martin, J., Arnau, F., Piqueras, P., and Auñon, A., "Development of an Integrated Virtual Engine Model to Simulate New Standard Testing Cycles," SAE Technical Paper 2018-01-1413, 2018, https://doi.org/10.4271/2018-01-1413.Data Sets - Support Documents
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References
- 2007
- Payri , F. , Lopez , J. , Pla , B. , and Graciano Bustamante , D. Assessing the Limits of Downsizing in Diesel Engines SAE Technical Paper 2014-32-0128 2014 10.4271/2014-32-0128
- Leveque , R.J. Finite-Volume Methods for Hyperbolic Problems Cambridge Texts in Applied Mathematics Cambridge University Press 2002
- Godunov , S.K. A Difference Scheme for Numerical Solution of Discontinuous Solution of Hydrodynamic Equations Matematicheskii Sbornik 47 271 306 1959
- B. van Leer Towards the Ultimate Conservation Difference Scheme, V. A Second Order Sequel to Godunov’s Method Journal of Computational Physics 32 1979 101 136
- E.F. Toro , M. Spruce , W. Speares 1992
- Toro , E.F. , Spruce , M. , and Speares , W. Restoration of the Contact Surface in the Harten-Lax-van Leer Riemann solver Shock Waves 4 25 34 1994
- Depcik C , Assanis D A Universal Heat Transfer Correlation for Intake and Exhaust Flows in a Spark-Ignition Internal Combustion Engine SAE 2002-01-0372 2002
- Santos R. 1999
- Reyes M. 1994
- Churchill , S.W. and Bernstein , M.A. Correlating Equation for Forced Convection from Gases and Liquids to a Circular Cylinder in Crossflow J. Heat Transfer 99 300 306 1977
- Dolz , V.
- Serrano , J.R. , Arnau , F.J. , Garcia-Cuevas , L.M. , Dombrovsky , A. , and Tartoussi , H. Energy Conversion and Management
- Galindo J , Navarro R , Garcia-Cuevas LM , Tarí D 2015
- Galindo J , Tiseira A , Navarro R , Tarí D , Tartourssi H , Guilain S Compressor Efficiency Extrapolation for 0D-1D Engine Simulations SAE Technical Paper 2016-01-0554
- Leufvén , O. 2013
- Martin , G. , Talon , V. , Higelin , P. , Charlet , A. et al. Implementing Turbomachinery Physics into Data Map-Based Turbocharger Models SAE Int. J. Engines 2 1 211 229 2009 10.4271/2009-01-0310
- Jensen , J. , Kristensen , A. , Sorenson , S. , Houbak , N. et al. Mean Value Modeling of a Small Turbocharged Diesel Engine SAE Technical Paper 910070 1991 10.4271/910070
- Olmeda , P. , Dolz , V. , Arnau , F.J. , and Reyes-Belmonte , M.A. Determination of Heat Flow Inside Turbochargers by Means of a One Dimensional Lumped Model Mathematical and Computer Modelling 57 1847 1852 2013
- Payri , F. , Olmeda , P. , Arnau , F.J. , Dombrovsky , A. , and Smith , L. External Heat Losses in Small Turbochargers: Model and Experiments Energy 71 534 546 2014
- Serrano , J.R. , Olmeda , P. , Tiseira , A. , and García-Cuevas , L.M. Theoretical and Experimental Study of Mechanical Losses in Automotive Turbochargers Energy 55 888 898 2013
- Payri , R. , Salvador , F.J. , Gimeno , J. , and Bracho , G. A New Methodology for Correcting the Signal Cumulative Phenomenon on Injection Rate Measurements Experimental Techniques 32 46 49 2008 10.1111/j.1747-1567.2007.00188.x
- Jean Arrègle , J. , López , J. , Martín , J. , and Mocholí , E.M. Development of a Mixing and Combustion Zero-Dimensional Model for Diesel Engines SAE Technical Paper 2006-01-1382
- Hamosfakidis , V. and Reitz , R.D. Optimization of a Hydrocarbon Fuel Ignition Model for Two Single Component Surrogates of Diesel Fuel Combustion and Flame 132 433 450 2003
- Livengood , J.C. and Wu , P.C. Correlation of Autoignition Phenomena in Internal Combustion Engines and Rapid Compression Machines Symp Int Combust 5 347 356 1955
- Payri , F. , Arrègle , J. , López , J. , and Mocholí , E. Diesel NOx Modeling with a Reduction Mechanism for the Initial NOx Coming from EGR or Re-entrained Burned Gases SAE Technical Paper 2008-01-1188 2008 10.4271/2008-01-1188
- Zeldovich , Y.A. The Oxidation of Nitrogen in Combustion and Explosions Acta Physicochim. USSR 21 577 628 1946
- J. Torregrosa , P. Olmeda , B. Degraeuwe , M. Reyes A Concise Wall Temperature Model for DI Diesel Engines Applied Thermal Engineering 26 11-12 2006 1320 1327
- Torregrosa , A.J. , Broatch , A. , Olmeda , P. , and Romero , C. Assessment of the Influence of Different Cooling System Configurations on Engine Warm-Up, Emissions and Fuel Consumption International Journal of Automotive Technology 9 4 447 458 2008
- Torregrosa , A.J. , Broatch , A. , Olmeda , P. , and Martín , J. A Contribution to Film Coefficient Estimation in Piston Cooling Galleries Experimental Thermal and Fluid Science 34 2 142 151 2010 10.1016/j.expthermflusci.2009.10.003
- Payri , F. , Olmeda , P. , Martin , J. , and Carreño , R. A New Tool to Perform Global Energy Balances in DI Diesel Engines SAE Int. J. Engines 7 1 43 59 2014 10.4271/2014-01-0665
- Benajes , J. , Olmeda , P. , Martín , J. , and Carreño , R. A new methodology for uncertainties characterization in combustion diagnosis and thermodynamic modelling In Applied Thermal Engineering 71 1 389 399 2014 10.1016/j.applthermaleng.2014.07.010
- Broatch , A. , Olmeda , P. , Martín , J. , and Salvador-Iborra , J. Development and Validation of a Submodel for Thermal Exchanges in the Hydraulic Circuits of a Global Engine Model SAE Technical Paper 2018-01-0160 2018
- Stanley , R. , Taraza , D. , and Henein , N. A Simplified Friction Model of the Piston Ring Assembly SAE Technical Paper 1999-01-0974 1999
- Taraza , D. and Henein , N. Friction Losses in Multi-Cylinder Diesel Engines SAE Technical Paper 2000-01-0921 2000
- Ushijima , K. , Moteki , K. , Goto , T. , and Aoyama , S. A Study on Engine Bearing Performance Focusing on the Viscosity-Pressure Characteristic of the Lubricant and Housing Stiffness SAE Technical Paper 961144 1996
- Tian T 1997
- Beloiu , D. Modeling and Analysis of Valve Train, Part I – Conventional Systems SAE Technical paper 2010-01-1198 2010
- Guo J. , Zhang W. and Zou D. Investigation of Dynamic Characteristics of a Valve Train System Mechanism and Machine Theory 46 12 1950 1969 2011
- J. Martín , P. Piqueras , L.M. García-Cuevas , E.J. Sanchis Lumped DOC Modelling Approach for Fluid-dynamic Simulation under Engine Dynamic Operation EAEC 2017 15th European Automotive Congress Leganés, Spain 2017
- Galindo , J. , Serrano , J.R. , Piqueras , P. , and García-Afonso , Ó. Heat Transfer Modelling in Honeycomb Wall-flow Particulate Filters Energy 43 201 213 2012
- Kim , D.J. , Kim , J.W. , Yie , J.E. , and Moon , H. Temperature-programmed Adsorption and Characteristics of Honeycomb Hydrocarbon Adsorbers Industrial and Engineering Chemistry Research 41 25 6589 6592 2002
- Serrano , J.R. , Arnau , F.J. , Piqueras , P. , and García-Afonso , Ó. Packed bed of Spherical Particles Approach for Pressure Drop Prediction in Wall-flow DPFs (Diesel Particulate Filters) Under Soot Loading Conditions Energy 58 644 654 2013
- Serrano , J.R. , Climent , H. , Piqueras , P. , and Angiolini , E. Analysis of Fluid-dynamic Guidelines in Diesel Particulate Filter Sizing for Fuel Consumption Reduction in post-turbo and pre-turbo Placement Applied Energy 132 507 523 2014
- Serrano , J.R. , Climent , H. , Piqueras , P. , and Angiolini , E. Filtration Modelling in Wall-flow Particulate Filters of Low Soot Penetration Thickness Energy 112 883 898 2016
- Payri , F. , Arnau , F.J. , Piqueras , P. , and Ruiz , M.J. Lumped Flow-Through and Wall-Flow Monolithic Reactors Modelling for Real-Time Automotive Applications SAE Technical Paper, 2018-01-0954 2018