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A Comparative Study on Influence of EIVC and LIVC on Fuel Economy of A TGDI Engine Part III: Experiments on Engine Fuel Consumption, Combustion, and EGR Tolerance
Technical Paper
2017-01-2232
ISSN: 0148-7191, e-ISSN: 2688-3627
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Abstract
The present paper is Part III of an investigation on the influences of the late intake valve closing (LIVC) and the early intake valve closing (EIVC) on the engine fuel consumptions at different loads and speeds. The investigation was conducted with two 1.5L turbo-charged gasoline direct injection (TGDI) engines, one with a low-lift intake cam (the Miller engine) and the other with a high-lift intake cam (the Atkinson engine). This paper focuses on the influence of the intake-valve-closing timing on the fuel economy with and without exhaust gas recirculation (EGR). It was found that the Miller engine had a lower friction than the Atkinson engine; however, the impact of the difference in engine frictions on the fuel economy was mainly for low-speed operations. Across the engine speed range, the Miller engine had longer combustion durations than the Atkinson engine as a result of the impact of EIVC on the cylinder charge motion. The Miller engine also had a lower EGR tolerance in comparison to the Atkinson engine, which limits the EGR benefits in the Miller engine. Overall, the Miller engine showed a better fuel economy at low engine speeds, and the Atkinson engine performed better at medium and high engine speeds.
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Cao, L., Teng, H., Miao, R., Luo, X. et al., "A Comparative Study on Influence of EIVC and LIVC on Fuel Economy of A TGDI Engine Part III: Experiments on Engine Fuel Consumption, Combustion, and EGR Tolerance," SAE Technical Paper 2017-01-2232, 2017, https://doi.org/10.4271/2017-01-2232.Data Sets - Support Documents
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References
- Atkinson , J. Gas Engine US patent 367496 1887
- Miller , R. High Expansion, Spark Ignited, Gas Burning, Internal Combustion Engines US patent 2773490 1956
- Miller , R. Supercharged Engine US patent 2817322 1957
- Jono , M. , Taguchi , M. , Shonohara , T. , and Narihiro , S. Development of a New 2.0L I4 Turbocharged Gasoline Direct Injection Engine SAE Technical Paper 2016-01-1017 2016 10.4271/2016-01-1017
- Nakano , K. , Wada , Y. , Jono , M. and Narihiro , S. New In-line 4-Cylinder Gasoline Direct Injection Turbocharged Downsizing Engine Honda R&D Technical Review 28 1 139 146 2016
- Shibata , M. , kawamata , M. , Komatsu , H. , Maeyama , K. et al. New 1.0L I3 Turbocharged Gasoline Direct Injection Engine SAE Technical Paper 2017-01-1029 2017 10.4271/2017-01-1029
- Autotrend Toyota Debuts New Turbo-Four for Auris Hatchback thetruthaboutcars.com
- Magda , M. New Lexus 2.0T Turbo Morphs between Otto and Atkinson enginelabs.com
- Wada , Y. , Nakano , K. , Mochizuki , K. , and Hata , R. Development of a New 1.5L I4 Turbocharged Gasoline Direct Injection Engine SAE Technical Paper 2016-01-1020 2016 10.4271/2016-01-1020
- Volkswagen Volkswagen at the 37th Vienna Motor Symposium
- Watanabe , E. and Fukutani , I. Knock Reduction of Spark-Ignition Engines by EGR SAE Technical Paper 860034 1986 10.4271/860034
- Kumano , K. and Yamaoka , S. Analysis of Knocking Suppression Effect of Cooled EGR in Turbo-Charged Gasoline Engine SAE Technical Paper 2014-01-1217 2014 10.4271/2014-01-1217
- Francqueville , L. and Michel , J. On the Effects of EGR on Spark-Ignited Gasoline Combustion at High Load SAE Int. J. Engines 7 4 1808 1823 2014 10.4271/2014-01-2628
- Takaki , D. , Tsuchida , H. , Kobara , T. , Akagi , M. et al. Study of an EGR System for Downsizing Turbocharged Gasoline Engine to Improve Fuel Economy SAE Technical Paper 2014-01-1199 2014 10.4271/2014-01-1199
- Heywood , J.B. Internal Combustion Engine Fundamentals 1st McGraw-Hill Book Company 1988
- Ramos , J.I. Internal Combustion Engine Modeling Hemisphere Publishing Company N.Y. 1989
- Mattavi , J. and Amann , C.A. Combustion Modeling in Reciprocating Engines Plenum Press N.Y. 1980
- Luo , X. , Teng , H. , Hu , T. , Miao , R. et al. Mitigating Intensities of Superknock Encountered in Highly Boosted Gasoline Direct Injection Engines SAE Technical Paper 2015-01-0084 2015 10.4271/2015-01-0084
- Teng , H. , Lou , X.W. , Hu , T.J. , Lu , C. JMC’s New 1.5L/1.8L Highly Boosted TGDI Gasoline Engines Paper presented at The 6th Aachen Colloquium China Automotive and Engine Technologies Nov.9-11, 2016 Beijing, China
- Lou , X.W. , Teng , H. , Lin , Y.X. , Li , B. et al. A Comparative Study on Influence of EIVC and LIVC on Fuel Economy of A TGDI Engine Part II: Influence of Intake Event and Intake Valve Closing Timing on the Cylinder Charge Motion SAE Technical Paper 2017-01-2246 2017
- Millo , F. and Rolando , L. Analysis of Knocking Phenomena in a High Performance Engine 1st GTI Italian User Conference Turin, Italy March 18, 2013