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Lean-Stratified Combustion System with Miller Cycle for Downsized Boosted Application - Part 2
Technical Paper
2021-01-0457
ISSN: 2641-9637, e-ISSN: 2641-9645
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SAE WCX Digital Summit
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English
Abstract
Automotive manufacturers relentlessly explore engine technology combinations to achieve reduced fuel consumption under continued regulatory, societal and economic pressures. For example, technologies enabling advanced combustion modes, increased expansion to effective compression ratio and reduced parasitics continue to be developed and integrated within conventional and hybrid propulsion strategies across the industry. A high-efficiency gasoline engine capable for use in conventional or hybrid electric vehicle platforms is highly desirable. This paper is the second of two papers describing the multi-cylinder integration of a technology package combining lean-stratified combustion with Miller cycle for downsized boosted applications. The first paper describes the design, analysis and single-cylinder testing conducted to down-select the combustion system deployed to the multi-cylinder engine. This paper defines a light-duty engine package capable of achieving a 35% fuel economy improvement at US Tier 3 emission standards over a naturally aspirated stoichiometric baseline vehicle. A multi-mode combustion system was developed enabling highly efficient lean-stratified operation at light-load and stoichiometric Miller-cycle operation at mid- to high-loads. A central direct-injection four-valve layout was designed with high-tumble ports and a bowl-in-piston capable of stable operation under highly dilute mixtures when properly matched to fuel spray characteristics, injection strategy, and a high-energy ignition system. Boost system layout and base engine architecture were selected to minimize parasitics and maximize aftertreatment effectiveness. A multi-cylinder engine was developed and calibrated over a steady-state map. Results fed vehicle simulations over the EPA city and highway test cycles to predict the fuel economy improvement and tailpipe emissions potential. Fuel economy improvements over the baseline vehicle were projected at 42% and 39% for active-urea and passive-ammonia SCR aftertreatment systems respectively. Controls complexity to achieve regulatory compliance and the cost of the lean aftertreatment system were identified as the primary challenges to commercial viability.
Authors
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Citation
Battiston, P., Wheeler, J., Solomon, A., and Sczomak, D., "Lean-Stratified Combustion System with Miller Cycle for Downsized Boosted Application - Part 2," SAE Int. J. Adv. & Curr. Prac. in Mobility 3(4):1651-1665, 2021, https://doi.org/10.4271/2021-01-0457.Data Sets - Support Documents
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Also In
SAE International Journal of Advances and Current Practices in Mobility
Number: V130-99EJ; Published: 2021-08-31
Number: V130-99EJ; Published: 2021-08-31
References
- Hakariya , M. , Toda , T. , and Sakai , M. The New Toyota Inline 4-Cylinder 2.5L Gasoline Engine SAE Technical Paper 2017-01-1021 2017 https://doi.org/10.4271/2017-01-1021
- Yamaji , K. , Tomimatsu , M. , Takagi , I. , Higuchi , A. et al. New 2.0L I4 Gasoline Direct Injection Engine with Toyota New Global Architecture Concept SAE Technical Paper 2018-01-0370 2018 https://doi.org/10.4271/2018-01-0370
- Kitadani , H. , Kaneda , R. , Mizoguchi , S. , Shinohara , Y. , Takeuchi , J. The New 1.5 L Gasoline Engine from the Toyota New Global Architecture Series Presented at the 41st International Vienna Motor Symposium April 2020
- Nakai , E. , Goto , T. , Ezumi , K. , Tsumura , Y. , Endou , K. , Kanda , Y. , Urushihara , T. , Sueoka , M. , Hitomi , M. MAZDA SKYACTIV-X 2.0L Gasoline Engine 28th Aachen Colloquium Automobile and Engine Technology 2019
- Ikeya , K. , Takazawa , M. , Yamada , T. , Park , S. et al. Thermal Efficiency Enhancement of a Gasoline Engine SAE Int. J. Engines 8 4 2015 https://doi.org/10.4271/2015-01-1263
- Tagishi , R. , Ikeya , K. , Takazawa , M. , and Yamada , T. Technology for Realization of Gasoline Engine Brake Thermal Efficiency of 45% Honda R& D Technical Review 27 2 1 11
- Takahashi , N. Downsizing as Evolution of High Thermal Efficiency Gasoline Engine Honda R& D Technical Review 27 2 12 20
- Barba , D. Assessing the Efficiency Potential of Future Gasoline Engines Presented at the in SAE 2018 High Efficiency IC Engine Symposium April 2018
- Brannys , S. , Gehrke , S. , Hoffmeyer , H. , Hentschel , L. , Blumenröder , K. , Helbing , C. Maximum Efficiency Concept of a 1.5l TSI evo for Future Hybrid Powertrians 28th Aachen Colloquium Automobile and Engine Technology 2019
- Nakata , K. , Nogawa , S. , Takahashi , D. , Yoshihara , Y. et al. Engine Technologies for Achieving 45% Thermal Efficiency of S.I. Engine SAE Int. J. Engines 9 1 2016 https://doi.org/10.4271/2015-01-1896
- Doornbos , G. , Hemdal , S. , and Dahl , D. Reduction of Fuel Consumption and Engine-out NOx Emissions in a Lean Homogeneous GDI Combustion System, Utilizing Valve Timing and an Advanced Ignition System SAE Technical Paper 2015-01-0776 2015 https://doi.org/10.4271/2015-01-0776
- Niizato , T. Honda Powertrain Strategy and ICE Technology for the Future Presented at the in SAE 2018 High Efficiency IC Engine Symposium April 2018
- Kim , Y. Development of High Efficiency Gasoline Engine with Thermal Efficiency over 43% Presented at the in SAE 2018 High Efficiency IC Engine Symposium April 2018
- Joshi , A. Review of Vehicle Engine Efficiency and Emissions SAE Int. J. Adv. & Curr. Prac. in Mobility 1 2 734 761 2019 https://doi.org/10.4271/2019-01-0314
- Battiston , P. Lean Miller Cycle Development for Light-Duty Vehicles Presented at the in US Department of Energy Annual Merit Review Washington, DC June 18-21 2018
- Sellnau , M. , Cho , K. , Zhang , Y. , and Cleary , D. Pathway to 50 % Brake Thermal Efficiency Using Gasoline Direct Injection Compression Ignition (GDCI) 28th Aachen Colloquium Automobile and Engine Technology 2019
- Cooper , A. , Harrington , A. , Bassett , M. , Reader , S. et al. Application of the Passive MAHLE Jet Ignition System and Synergies with Miller Cycle and Exhaust Gas Recirculation SAE Technical Paper 2020-01-0283 2020 https://doi.org/10.4271/2020-01-0283
- Dernotte , J. , Najt , P.M. , and Durrett , R.P. Downsized-Boosted Gasoline Engine with Exhaust Compound and Dilute Advanced Combustion SAE Technical Paper 2020-01-0795 2020 https://doi.org/10.4271/2020-01-0795
- Solomon , A. , and Battiston , P. Development of a High-Efficiency Lean-Gasoline Combustion Engine 29th Aachen Colloquium Automobile and Engine Technology 2020
- Hitomi , M. , Sasaki , J. , Hatamura , K. , and Yano , Y. Mechanism of Improving Fuel Efficiency by Miller Cycle and Its Future Prospect SAE Technical Paper 950974 1995 https://doi.org/10.4271/950974
- Zheng , B. , Yin , T. , and Li , T. Analysis of Thermal Efficiency Improvement of a Highly Boosted, High Compression Ratio, Direct-Injection Gasoline Engine with LIVC and EIVC at Partial and Full Loads SAE Technical Paper 2015-01-1882 2015 https://doi.org/10.4271/2015-01-1882
- Ketterer , J.E. , Gautier , E. , and Keating , E.J. The Development and Evaluation of Robust Combustion Systems for Miller Cycle Engines SAE Technical Paper 2018-01-1416 2018 https://doi.org/10.4271/2018-01-1416
- Solomon , A. , Battiston , P. , and Sczomak , D. Lean-Stratified Combustion System with Miller Cycle for Downsized Boosted Application - Part I SAE Technical Paper 2021-01-0458 2021
- https://www.energy.gov/sites/prod/files/2018/03/f49/ACEC_TT_Roadmap_2018.pdf
- Smith , Stuart R. Lean Gasoline System Development for Fuel Efficient Small Cars 10.2172/1127150 https://www.osti.gov/servlets/purl/1127150
- Li , W. , et al. Passive NH3 SCR for lean SIDI: Experimental Results 12th CLEERS Workshop 2009
- Li , W. , Perry , K. , Narayanaswamy , K. , Kim , C. , and Najt , P. Passive Ammonia-SCR System for lean-burn SIDI Engines SAE Paper No., 2010-01-0366 https://doi.org/10.4271/2010-01-0366
- Kim , C. , Perry , K. , Viola , M. , Li , W. , and Narayanaswamy , K. Three-Way Catalyst Design for Urealess Passive Ammonia SCR: Lean-Burn SIDI Aftertreatment System SAE Technical Paper Series December 2011 https://doi.org/10.4271/2011-01-0306
- Prikhodko , V. , Parks , J. , Pihl , J. , and Toops , T. Ammonia Generation and Utilization in a Passive SCR (TWC+SCR) System on Lean Gasoline Engine SAE Int. J. Engines 9 2 2016 https://doi.org/10.4271/2016-01-0934
- Prikhodko , V. , Pihl , J. , Toops , T. , and Parks , J. Effects of NOX Storage Component on Ammonia Formation in TWC for Passive SCR NOX Control in Lean Gasoline Engines SAE Technical Paper 2018-01-0946 2018 https://doi.org/10.4271/2018-01-0946
- Farrant , P. et al. The Application of Thermal Modeling to an Engine and Transmission to Improve Fuel Consumption Following a Cold Start SAE, Vols. 2005-01-2038
- Spiegel , L. , et al. Powertrain Management in Sports Cars in Order to Reduce Fuel 2008 International Vienna Motor Symposium
- Brinker , M. , Müller , T. , Reichenbach , M. , Plankenbühler , M. , Zahdeh , Dr.A. , Gatowski , Dr.J. Comprehensive Thermal Management for Future Gasoline Engines 38th Vienna International Motor Symposium 2017
- Lehman , B. , Luchansky , K. , Marriott , C. , Shin , S. The New 2.7 L Turbo Engine from General Motors 40th Vienna International Motor Symposium 2019
- Kamasamudram , K. , Currier , N.W. , Xu , C. , and Yezerets , A. Overview of the Practically Important Behaviors of Zeolite-Based Urea-SCR Catalysts, Using Compact Experimental Protocol Catalysis Today 151 3-4 212 222 April 22, 2010 https://doi.org/10.1016/j.cattod.2010.03.055
- Jääskeläinen , H. , and Majewski , W.A. Urea Dosing Control DieselNet https://dieselnet.com/tech/cat_scr_diesel_control.php