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Investigation of advanced valve timing strategies for efficient spark ignition ethanol operation
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 03, 2018 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Biofuels for internal combustion engines have been explored worldwide to reduce fossil fuel usage and mitigate greenhouse gas emissions. Additionally, increased spark ignition (SI) engine part load efficiency has been demanded by recent emission legislation for the same purposes. Considering theses aspects, this study investigates the use of non-conventional valve timing strategies in a 0.35 L four valve single cylinder test engine operating with anhydrous ethanol. The engine was equipped with a fully variable valve train system enabling independent valve timing and lift control. Conventional spark ignition operation with throttle load control (tSI) was tested as baseline. A second valve strategy using dethrottling via early intake valve closure (EIVC) was tested to access the possible pumping loss reduction. Two other strategies, negative valve overlap (NVO) and exhaust rebreathing (ER), were investigated as hot residual gas trapping strategies using EIVC as dethrottling technique. Several part load conditions were tested at 1500 rpm with stoichiometric ethanol port fuel injection during the intake stroke. Spark assisted compression ignition (SACI) was achieved with ER at some loads. The use of EIVC load control strategy was effective to reduce part load pumping losses. Both strategies with residual gas trapping provided increased indicated efficiency and considerable NOx emissions reduction.
CitationLanzanova, T., Nora, M., Machado, P., and Zhao, H., "Investigation of advanced valve timing strategies for efficient spark ignition ethanol operation," SAE Technical Paper 2018-36-0147, 2018, https://doi.org/10.4271/2018-36-0147.
Data Sets - Support Documents
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- K. Hatano, K. Lida, H. Higashi, and S. Murata, “Development of a New Multi-Mode Variable Valve Timing Engine,” SAE Tech. Pap., no. 930878, 1993.
- C. Brüstle and D. Schwarzenthal, “VarioCam Plus – A Highlight of the Porsche 911 Turbo Engine,” SAE Tech. Pap. 2001-01-0245, vol. 2001, no. 724, 2001.
- G. Vent, C. Enderle, N. Merdes, F. Kreitmann, and R. Weller, “The New 2. 0l Turbo Engine from the Mercedes- Benz 4- Cylinder Engine Family,” in 2nd Aachen Colloquium China, 2012, pp. 1-23.
- M. Shibata et al., “New 1.0L I3 Turbocharged Gasoline Direct Injection Engine,” SAE Tech. Pap., no. 2017-01-1029, Mar. 2017.
- R. Flierl and M. Kluting, “The Third Generation of Valvetrains – New Fully Variable Valvetrains for Throttle-Free Load Control,” SAE Tech. Pap., no. 2000-01-1227, 2000.
- C. Luttermann, E. Schueenemann, and N. Klauer, “Enhanced VALVETRONIC technology for meeting SULEV emission requirements.,” Soc. Automot. Eng. [SpecialPubl. SP, vol. SP- 2025, no. Advanced Catalysts and Substrates 2006, pp. 7-11, 2006.
- W. Gottschalk, U. Lezius, and L. Mathusall, “Investigations on the Potential of a Variable Miller Cycle for SI Knock Control,” Apr. 2013.
- I. Trevas, C. Pimenta, H. Fernandes, M. Carvalho, and R. Montemor, “Combustion Analysis on a Variable Valve Actuation Spark Ignition Engine Operating With E22 and E100,” SAE Tech. Pap., no. 2017-01–1069, 2017.
- S. Takemura et al., “A Study of a Continuous Variable Valve Event and Lift (VEL) System,” SAE Tech. Pap., no. 2001-01–0243, 2001.
- T. Sugiyama, R. Hiyoshi, S. Takemura, and S. Aoyama, “Technology for Improving Engine Performance using Variable Mechanisms,” SAE Tech. Pap., no. 2007-01–1290, 2007.
- T. Fujita, K. Onogawa, S. Kiga, Y. Mae, Y. Akasaka, and K. Tomogane, “Development of Innovative Variable Valve Event and Lift (VVEL) System,” SAE Tech. Pap., no. 2008-01–1349, 2008.
- A. Titolo, “The Variable Valve Timincl - System - Application on a V8 Engine,” SAE Tech. Pap., no. 910009, 2015.
- J. Allen and D. Law, “Production Electro-Hydraulic Variable Valve-Train for a New Generation of I. C. Engines,” SAE Tech. Pap., no. 2002-01–1109, 2002.
- J. W. G. Turner, M. D. Bassett, R. J. Pearson, G. Pitcher, and K. J. Douglas, “New Operating Strategies Afforded by Fully Variable Valve Trains,” SAE Tech. Pap., no. 2004-01–1386, 2004.
- N. Milovanovic, D. Blundell, S. Gedge, and J. Turner, “Cam Profile Switching (CPS) and phasing strategy vs Fully Variable Valve Train (FVVT) strategy for transitions between spark ignition and controlled auto ignition modes,” SAE Tech. Pap., no. 2005-01–0766, 2005.
- RICARDO, “Case Study: Stroke of genius for gasoline downsizing,” Q3, 2008Ricardo Q. Rev., pp. 8–14, 2008.
- L. A. Gould, W. E. Richeson, and F. L. Erickson, “Performance Evaluation of a Camless Engine Using Valve Actuators with Programmable Timing,” SAE Tech. Pap., no. 910450, Feb. 1991.
- Freevalve, “Freevalve Technology,” 2017. Online]. Available: http://www.freevalve.com/. [Accessed: 18-Apr-2017..
- D. Shao, X. Sichuan, and A. Du, “Research on a New Electromagnetic Valve Actuator Based on Voice Coil Motor for Automobile Engines A New Design of Voice Coil Electromagnetic Valve,” SAE Tech. Pap., no. 2017-01–1070, 2017.
- Y. Zhang and H. Zhao, “Investigation of combustion, performance and emission characteristics of 2-stroke and 4- stroke spark ignition and CAI/HCCI operations in a DI gasoline,” Appl. Energy, vol. 130, pp. 244–255, Oct. 2014.
- L. Mikulic, J. Schommers, B. Geringer, K. Wolf, and C. Enderle, “Variable Gas Exchange Systems for S.I. Engines - Layout and Experimental Data,” SAE Tech. Pap., no. 920296, 1992.
- P. Kreuter, P. Heuser, and M. Schebitz, “Strategies to improve SI-engine performance by means of variable intake lift, timing and duration,” SAE Tech. Pap., p. 920449, 1992.
- Y. Urata, H. Umiyama, K. Shimizu, Y. Fujiyoshi, H. Sono, and K. Fukuo, “A Study of Vehicle Equipped with Non-Throttling S.I. Engine with Early Intake Valve Closing Mechanism,” SAE Tech. Pap., no. 930820, 1993.
- S. Nagumo and S. Hara, “Study of fuel economy improvement through control of intake valve closing timing: cause of combustion deterioration and improvement,” JSAE Rev., vol. 16, no. 1, pp. 13–19, 1995.
- T. Lanzanova, M. D. Nora, and H. Zhao, “Investigation of Early and Late Intake Valve Closure Strategies for Load Control in a Spark Ignition Ethanol Engine,” SAE Int. J. Engines, vol. 10, no. 2017-01–0643, 2017.
- M. Battistoni and F. Mariani, “Fluid Dynamic Study of Unthrottled Part Load SI Engine Operations with Asymmetric Valve Lifts,” SAE Tech. Pap., no. 2009-24–17, 2009.
- I. Bücker, D.-C. Karhoff, M. Klaas, and W. Schroder, “Engine In-Cylinder Flow Control via Variable Intake Valve Timing,” SAE Tech. Pap., no. 2013-24–0055, 2013.
- F. Soderberg and B. Johansson, “Fluid flow, combustion and efficiency with early and late inlet valve closing,” SAE Tech. Pap., no. 972937, 1997.
- P. Stansfield et al., “Unthrottled engine operation using variable valve activation: the impact on the flow field, mixing and combustion.,” SAE Tech. Pap., no. 2007011414, 2007.
- R. Patel et al., “Un-throttling a direct injection gasoline homogeneous mixture engine with variable valve actuation,” Int. J. Engine Res., vol. 11, no. 6, pp. 391–411, 2010.
- M. E. S. Martins and T. D. M. Lanzanova, “Full-load Miller cycle with ethanol and EGR: Potential benefits and challenges,” Appl. Therm. Eng., vol. 90, pp. 274–285, 2015.
- D. Law, D. Kemp, J. Allen, G. Kirkpatrick, and T. Copland, “Controlled Combustion in an IC-Engine with a Fully Variable Valve Train,” SAE Tech. Pap., no. 2001-01–0251, 2001.
- L. Koopmans and I. Denbratt, “A four-stroke camless engine, operated in homogeneous charge compression ignition mode with commercial gasoline,” SAE Tech. Pap., no. 2001-01–3610, 2001.
- H. Zhao, J. Li, T. Ma, and N. Ladommatos, “Performance and analysis of a 4-stroke multi-cylinder gasoline engine with CAI combustion,” no. 2002-01–0420, 2002.
- Y. Zhang, B.-Q. He, H. Xie, and H. Zhao, “The Combustion and Emission Characteristics of Ethanol on a Port Fuel Injection HCCI Engine,” SAE Tech. Pap., no. 2006-01–0631, 2006.
- H. Zhao, HCCI and CAI engines for the automotive industry. Woodhead Pub., 2007.
- V. Knop, L. de Francqueville, F. Duffour, and F. Vangraefschèpe, “Influence of the Valve-lift Strategy in a CAITM Engine using Exhaust Gas Re-Breathing - Part 2: Optical Diagnostics and 3D CFD Results,” SAE Int. J. Engines, vol. 2, no. 1, pp. 2009-01–0495, Apr. 2009.
- A. Fuerhapter, W. F. Piock, and G. K. Fraidl, “CSI - Controlled Auto Ignition – the Best Solution for the Fuel Consumption – Versus Emission Trade-Off?,” SAE Tech. Pap., no. 2003-01–0754, 2003.
- a. Fuerhapter, E. Unger, W. F. Piock, and G. K. Fraidl, “The new AVL CSI Engine – HCCI Operation on a Multi Cylinder Gasoline Engine,” SAE Tech. Pap., no. 2004-01–0551, 2004.
- F. Duffour, F. Vangraefschèpe, V. Knop, and L. De Francqueville, “Influence of the Valve-lift Strategy in a CAITM Engine using Exhaust Gas Re-Breathing – Part 1: Experimental Results and 0D Analysis,” SAE Tech. Pap., no. 2009-01–0299, 2009.
- J. B. Heywood, Internal Combustion Engine Fundamentals, 1st ed., vol. 21. McGraw-Hil, 1988.
- K. Kar and W. K. Cheng, “Speciated Engine-Out Organic Gas Emissions from a PFI-SI Engine Operating on Ethanol/Gasoline Mixtures,” vol. 2, no. 2, pp. 91–101, Nov. 2009.
- T. Wallner, “Correlation Between Speciated Hydrocarbon Emissions and Flame Ionization Detector Response for Gasoline/Alcohol Blends,” J. Eng. Gas Turbines Power, vol. 133, no. 8, p. 82801, 2011.
- T. D. M. Lanzanova, M. Dalla Nora, and H. Zhao, “Performance and economic analysis of a direct injection spark ignition engine fueled with wet ethanol,” Appl. Energy, vol. 169, pp. 230–239, May 2016.
- Economic Commission for Europe of the United Nations, “Regulation No 49 of the Economic Commission for Europe of the United Nations (UN/ECE),” Off. J. Eur. Union, no. 171, pp. 1–390, 2013.