This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Matching and Evaluating Methods for Euro 6 and Efficient Two-stage Turbocharging Diesel Engine
Technical Paper
2010-01-1229
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
While fuel efficiency has to be improved, future Diesel engine emission standards will further restrict vehicle emissions, particularly of nitrogen oxides. Increased in-cylinder filling is recognized as a key factor in addressing this issue, which calls for advanced design of air and exhaust gas recirculation circuits and high cooling capabilities.
As one possible solution, this paper presents a 2-stage boosting breathing architecture, specially dedicated to improving the trade-off between emissions and fuel consumption instead of seeking to improve specific power on a large family vehicle equipped with a 1.6-liter Diesel engine. In order to do it, turbocharger matching was specifically optimized to minimize engine-out NOx emissions at part-load and consumption under common driving conditions.
Engine speed and load were analyzed on the European driving cycle. The key operating points and associated upper boundary for NOx emission were identified. Then, automated single-cylinder engine tests were performed using the design of experiment method in order to characterize engine responses and to identify the corresponding in-cylinder filling targets.
Defining low full-load targets, turbo matching was undertaken to satisfy this performance requirements with the best charging capacity at part-load. Following a 0D air path simulation study based on manufacturer maps, two turbochargers were chosen.
Afterwards, an engine model was developed using the IFP-Engine library in the LMS Imagine.Lab AMESim simulation tool. Phenomenological combustion modeling was used and an advanced breathing architecture fully reproduced.
The physical modeling offered a means of checking that the in-cylinder filling targets could be achieved and of comparing the fuel consumption for different configurations. Lastly, transient simulations were performed to estimate the dynamic response of the engine in a vehicle situation.
Recommended Content
Authors
Topic
Citation
Watel, E., Pagot, A., Pacaud, P., and Schmitt, J., "Matching and Evaluating Methods for Euro 6 and Efficient Two-stage Turbocharging Diesel Engine," SAE Technical Paper 2010-01-1229, 2010, https://doi.org/10.4271/2010-01-1229.Also In
References
- Mattes, W. “Tailored DeNOx concepts for high performance Diesel engines” the 2 nd MinNOx Conference Germany June 19-20 2008
- Zhao, H. HCCI and CAI engines for the automotive industry Woodhead publishing 2007
- Cursente, V. Pacaud, P. Gatellier, B. “Reduction of the Compression Ratio on a HSDI Diesel Engine: Combustion Design Evolution for Compliance the Future Emissions Standards,” SAE Int. J. Fuels Lubr. 1 1 420 439 2008
- Beatrice, C. Guido, C. Del Giacomo, N. Bertoli, C. “Study of the compression ratio influence on the performance of an advanced automotive diesel engine operating in conventional and PCCI combustion mode” Thiesel Conference Spain September 9-12 2008
- Luján, J.M. Pla, B. Moroz, S. Bourgoin, G. “Effect of low pressure EGR on gas exchange processes and turbocharging of a HSDI engine” Thiesel Conference Spain September 9-12 2008
- Keller, P. Joergl, V. Weber, O. Czarnowski, R. “Enabling Components for Future Clean Diesel Engines,” SAE Technical Paper 2008-01-1530 2008
- Mendez, S. Thirouard, B. “Using Multiple Injection Strategies in Diesel Combustion: Potential to Improve Emissions, Noise and Fuel Economy Trade-Off in Low CR Engines,” SAE Int. J. Fuels Lubr. 1 1 662 674 2008
- Kastner, O. Atzler, F. Weigand, A. Rotondi, R. “Evaluation of injection strategies for passenger car diesel engines to meet euro6 legislation limits” Thiesel Conference Spain September 9-12 2008
- Körfer, T. Lamping, M. Kolbeck, A. Genz, T. Pischinger, S. Busch, H. Adolph, D. “Downsizing of HSDI-Diesel engines - Potential and challenges” the 6 th Symposium Towards Clean Diesel Engines Italy June 20-22 2007
- Lamping, M. Kolbeck, A. Körfer, T. Adolph, D. Schnorbus, T. Pischinger, S. Moroz, S. “Advanced clean-powerful HSDI Diesel engine concept for lowest CO2 and emission requirements” Aachener Kolloquium Fahrzeug und Motorentechnik Germany October 6-8 2008
- Ruggiero, A. Tonetti, M. Gioannini, A. Pelassa, M. “Combustion technologies to meet Euro 6 emissions standards on a diesel D-segment passenger car” SIA Diesel Engines International Conference France May 28-29 2008
- Warga, J. Boecking, F. Pauer, T. Leonhard, R. Gerhardt, J. “FIE measures to support CO2-Reduction and emission challenge for the future” SIA Diesel Engines International Conference France May 28-29 2008
- Thirouard, M. Mendez, S. Pacaud, P. Chmielarczyk, V. et al. “Potential to Improve Specific Power Using Very High Injection Pressure in HSDI Diesel Engines,” SAE Technical Paper 2009-01-1524 2009
- Pflüger, F. “Regulated two-stage turbocharging, KKK's new charging system for commercial diesel engines” 6 th International Conference on Turbocharging and Air Management Systems United Kingdom November 3-5 1998
- Watel, E. Magand, S. Grondin, O. Castagné, M. Soleri, D. Devismes, S. Moroz, S. “Design of a low NOx emission HCCI Diesel prototype vehicle” SIA Diesel Engines International Conference France May 28-29 2008
- Magand, S. Watel, E. Castagné, M. Soleri, D. Grondin, O. Devismes, S. Moroz, S. “Optimisation of a low NOx emission HCCI Diesel prototype vehicle” Thiesel Conference Spain September 9-12 2008
- Barba, C. Burkhardt, C. Boulouchos, K. Bargende, M. “A Phenomenological Combustion Model for Heat Release Rate Prediction in High-Speed DI Diesel Engines with Common Rail Injection,” SAE Technical Paper 2000-01-2933 2000
- Le Berr, F. Alix, G. Richard, S. Lafossas, F-A. et al. “Powertrain Simulation Tools and Application to the Development of a SI Engine Concept Car,” SAE Technical Paper 2008-01-0356 2008
- Albrecht, A. Marbaix, M. Moulin, P. Guinois, A. Fontvieille, L. “Extensive use of simulation for two-stage turbocharger diesel engine control strategy development” Engine Process Simulation and Supercharging Conference Germany June 25-26 2007
- Gautier, P. Albrecht, A. Chasse, A. Moulin, P. Pagot, A. Fontvieille, L. Issartel, D. “A simulation study of the impact of LP EGR on a two-stage turbocharged Diesel engine” Oil & Gas Science and Technology - Rev. IFP 64 3 361 379 2009