nach oben

International Journal of Automotive Technology

23.01.2025 | Electric, Fuel Cell, and Hybrid Vehicle, Engine and Emissions, Fuels and Lubricants, Heat Transfer, Fluid and Thermal Engineering

Research on Reduction of Fuel Efficiency Based on Hydraulic Variable Valve Mechanism of Four-Cylinder Engine

verfasst von: Tian You, Zhaohui Jin, Shanshan Wang, Ning Liu, Di Cui, Nanzhou Li

Erschienen in: International Journal of Automotive Technology

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

A hydraulic variable valve mechanism based on four-cylinder gasoline engine is developed independently, which can realize continuous variable valve lift and closing time. From the perspective of the average turbulent kinetic energy in the cylinder, the pressure in the cylinder, the ignition delay period and the combustion duration, the fuel economy of the throttle control strategy (TH), the early intake valve closed control strategy (EIVC) and the intake valve and throttle synergy control strategy (IVTS) are analyzed. The results show that the fuel economy of EIVC control strategy is 9.4% lower than that of TH control strategy (original engine) at medium and small loads. With the increase of load, the improvement effect of EIVC fuel economy gradually decreases. Different cycle cylinder deactivation rates (20%, 40%, 50%) are suitable for use in medium and small load working ranges, and the greater the cylinder deactivation rate, the better the fuel economy improvement. The 50% cylinder deactivation rate can save fuel by 13.1% compared with the TH control strategy. In the case of large load, the EIVC control strategy is optimal. Under various operating conditions, the fuel economy of IVTS control strategy is between that of EIVC control strategy and TH control strategy.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

ATZelectronics worldwide

ATZlectronics worldwide is up-to-speed on new trends and developments in automotive electronics on a scientific level with a high depth of information.

Order your 30-days-trial for free and without any commitment.

Jetzt informieren

ATZelektronik

Die Fachzeitschrift ATZelektronik bietet für Entwickler und Entscheider in der Automobil- und Zulieferindustrie qualitativ hochwertige und fundierte Informationen aus dem gesamten Spektrum der Pkw- und Nutzfahrzeug-Elektronik.

Lassen Sie sich jetzt unverbindlich 2 kostenlose Ausgabe zusenden.

Jetzt informieren

Abagnale, C., et al. (2009). A new mechanical variable valve actuation system for motorcycle engines. SAE Technical Paper. https://doi.org/10.4271/2009-24-0080CrossRefMATH

Abas, M., & Martinez-Botas, R. (2015). Engine operational benefits with cylinder deactivation in Malaysian urban driving conditions. SAE Technical Papers. https://doi.org/10.4271/2015-01-0983CrossRefMATH

Bech, A., et al. (2016). The effects of cylinder deactivation on the thermal behaviour and performance of a three cylinder spark ignition engine. SAE International Journal of Engines, 9(4), 1999–2009.CrossRefMATH

Boretti, A. (2010). Use of variable valve actuation to control the load in a direct injection, turbocharged, spark-ignition engine. SAE Technical Papers. https://doi.org/10.4271/2010-01-2225CrossRefMATH

Chen, S. K., et al. (2018). Machine learning for misfire detection in a dynamic skip fire engine. SAE International Journal of Engines, 11(6), 965–976.MathSciNetCrossRefMATH

Chien, L.-C., et al. (2015). Modeling and simulation of airflow dynamics in a dynamic skip fire engine. SAE Technical Papers. https://doi.org/10.4271/2015-01-1717CrossRefMATH

Dat, L. V., & Shiao, Y. (2017). Proposing a valve train system for cylinder deactivation in si engines. Transactions of the Canadian Society for Mechanical Engineering, 41, 4.CrossRefMATH

Demir, U., et al. (2022). Effects of variable valve timing on the air flow parameters in an electromechanical valve mechanism—A cfd study. Fuel, 308, 121956.CrossRefMATH

Ding, C., et al. (2016). Fuel efficient exhaust thermal management for compression ignition engines during idle via cylinder deactivation and flexible valve actuation. International Journal of Engine Research, 17(6), 619–630.CrossRefMATH

Eisazadeh-Far, K., & Younkins, M. (2016). Fuel economy gains through dynamic-skip-fire in spark ignition engines. SAE Technical Papers. https://doi.org/10.4271/2016-01-0672CrossRef

Feng, S., et al. (2019). Influence of stratified charge organized by double injection strategy on combustion and emissions on an EGR diluted GDI engine. Applied Thermal Engineering, 158, 113803.CrossRef

Gecim, B., & Raghavan, M. (2009). Simulation and test results for several variable-valve-actuation mechanisms. SAE Technical Papers. https://doi.org/10.4271/2009-01-0229CrossRefMATH

Gottschalk, W., et al. (2016). Investigations on ventilation strategies for SI cylinder deactivation based on a variable valve train. SAE Technical Papers. https://doi.org/10.4271/2016-01-2346CrossRefMATH

Hossein Rokni, D. T., et al. (2011). An optimum flexible linkage design of a fully variable electromechanical valve actuation system for internal combustion engines. Journal of Mechanical Design, 133(12), 121008.CrossRefMATH

Hu, M., & Chang, S. (2018). Study on valve strategy and fuel benefits of skip fire based on electromagnetic valve train. MATEC Web of Conferences, 202, 02003.CrossRef

Hu, M., Chang, S., Liu, L., et al. (2018a). Design and analysis of skip fire valve strategies based on electromagnetic valve train. Applied Thermal Engineering, 129, 833–840.CrossRefMATH

Hu, M., Chang, S., Xu, Y., et al. (2018b). Study on valve strategy of variable cylinder deactivation based on electromagnetic intake valve train. Applied Sciences, 8(11), 2096.CrossRefMATH

Kutlar, O. A., et al. (2005). Methods to improve efficiency of four stroke, spark ignition engines at part load. Energy Conversion and Management, 46(20), 3202–3220.CrossRefMATH

Kutlar, O. A., et al. (2007). Skip cycle system for spark ignition engines: An experimental investigation of a new type working strategy. Energy Conversion and Management, 48(2), 370–379.CrossRefMATH

Lee, N., et al. (2018). Estimation of fuel economy improvement in gasoline vehicle using cylinder deactivation. Energies, 11(11), 3084.CrossRefMATH

Li, A., et al. (2023). Wet clutch pressure hysteresis compensation control under variable oil temperatures for electro-hydraulic actuators. Control Engineering Practice, 141, 105723.CrossRefMATH

Lou, Z. D. (2007). Camless variable valve actuation designs with two-spring pendulum and electrohydraulic latching. SAE Technical Paper. https://doi.org/10.4271/2007-01-1295CrossRefMATH

Luo, X., et al. (2020). Fast catalyst light-off with dynamic skip fire. SAE International Journal of Advances and Current Practices in Mobility, 2(4), 1849–1861.MathSciNetCrossRefMATH

Mandal, A., et al. (2019). Vibration rating prediction using machine learning in a dynamic skip fire engine. SAE International Journal of Advances and Current Practices in Mobility, 1(4), 1491–1501.CrossRefMATH

McGhee, M., et al. (2019). The effects of cylinder deactivation on the thermal behaviour and fuel economy of a three-cylinder direct injection spark ignition gasoline engine. Proceedings of the Institution of Mechanical Engineers, Part d: Journal of Automobile Engineering, 233(11), 2838–2849.MATH

Meldolesi, R., et al. (2011). Scuderi split cycle fast acting valvetrain: Architecture and Development. SAE International Journal of Engines, 4(1), 467–481.CrossRef

Meldolesi, R., & Badain, N. (2012). Scuderi split cycle engine: Air hybrid vehicle powertrain simulation study. SAE Technical Papers. https://doi.org/10.4271/2012-01-1013CrossRef

Muhamad Said, M. F., et al. (2014). Investigation of cylinder deactivation (CDA) strategies on part load conditions. SAE Technical Papers. https://doi.org/10.4271/2014-01-2549CrossRefMATH

Ortiz-Soto, E., et al. (2019). mDSF: improved fuel efficiency, drivability and vibrations via dynamic skip fire and miller cycle synergies. SAE Technical Papers. https://doi.org/10.4271/2019-01-0227CrossRefMATH

Parker, M. C., et al. (2021). Impact and observations of cylinder deactivation and reactivation in a downsized gasoline turbocharged direct injection engine. International Journal of Engine Research, 22(4), 1367–1376.CrossRefMATH

Phillips, F., et al. (2011). Scuderi split cycle research engine: overview, architecture and operation. SAE International Journal of Engines, 4(1), 450–466.CrossRefMATH

Picron, V., et al. (2008). Electro-magnetic valve actuation system: first steps toward mass production. SAE Technical Papers. https://doi.org/10.4271/2008-01-1360CrossRef

Pournazeri, M., et al. (2011). An efficient lift control technique in electro-hydraulic camless valvetrain using variable speed hydraulic pump. SAE International Journal of Engines, 4(1), 1247–1259.CrossRefMATH

Scassa, M., et al. (2019). Dynamic skip fire applied to a diesel engine for improved fuel consumption and emissions. SAE Technical Papers. https://doi.org/10.4271/2019-01-0549CrossRef

Senapati, U., et al. (2011). Vehicle refinement challenges for a large displacement engine with cylinder deactivation capability. SAE Technical Papers. https://doi.org/10.4271/2011-01-1678CrossRefMATH

Serrano, J., et al. (2014). Methods of evaluating and mitigating NVH when operating an engine in dynamic skip fire. SAE International Journal of Engines, 7(3), 1489–1501.CrossRefMATH

Shiao, Y., & Dat, L. V. (2012). Efficiency improvement for an unthrottled SI engine at part load. International Journal of Automotive Technology, 13(6), 885–893.CrossRefMATH

Takemura, S., et al. (2008). A study of a multiple-link continuously variable valve event and lift (VVEL) system. SAE International Journal of Fuels and Lubricants, 1(1), 1224–1231.CrossRefMATH

Tripathy, S., et al. (2020). Electro-pneumatic variable valve actuation system for camless engine: Part I-development and characterization. Energy, 193, 116740.CrossRefMATH

Turner, C. W., et al. (2004). Design and control of a two-stage electro-hydraulic valve actuation system. SAE Technical Papers. https://doi.org/10.4271/2004-01-1265CrossRefMATH

Van Ess, J., et al. (2018). Method to Compensate Fueling for Individual Firing Events in a Four-Cylinder Engine Operated with Dynamic Skip Fire. SAE International Journal of Engines, 11(6), 977–991.CrossRefMATH

Wilcutts, M., et al. (2013). Design and benefits of dynamic skip fire strategies for cylinder deactivated engines. SAE International Journal of Engines, 6(1), 278–288.CrossRef

Wilcutts, M., et al. (2018). Electrified dynamic skip fire (eDSF): Design and benefits. SAE Technical Papers. https://doi.org/10.4271/2018-01-0864CrossRef

Wong, P. K., & Mok, K. W. (2008). Design and modeling of a novel electromechanical fully variable valve system. SAE Technical Papers. https://doi.org/10.4271/2008-01-1733CrossRefMATH

Zhao, J., et al. (2018). Improving the partial-load fuel economy of 4-cylinder SI engines by combining variable valve timing and cylinder-deactivation through double intake manifolds. Applied Thermal Engineering, 141, 245–256.CrossRefMATH

Zhou, X., et al. (2020a). Combustion and energy balance analysis of an unthrottled gasoline engine equipped with innovative variable valvetrain. Applied Energy, 268, 115051.CrossRefMATH

Zhou, X. J., et al. (2020b). Kinematics analysis and design method of a new mechanical CVVL system with self-regulation of the valve timing. Mechanism and Machine Theory, 143, 103624.CrossRefMATH

Zibani, I., et al. (2020). Variable valve timing for a camless stepping valve engine. Procedia Manufacturing, 43, 590–597.CrossRefMATH

Titel: Research on Reduction of Fuel Efficiency Based on Hydraulic Variable Valve Mechanism of Four-Cylinder Engine
verfasst von: Tian You
Zhaohui Jin
Shanshan Wang
Ning Liu
Di Cui
Nanzhou Li
Publikationsdatum: 23.01.2025
Verlag: The Korean Society of Automotive Engineers
Erschienen in: International Journal of Automotive Technology
Print ISSN: 1229-9138
Elektronische ISSN: 1976-3832
DOI: https://doi.org/10.1007/s12239-024-00201-9

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Springer Professional "Wirtschaft+Technik"

ATZelectronics worldwide

ATZelektronik