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Quasi-Constant Volume (QCV) Spark Ignition Combustion
Technical Paper
2009-01-0700
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Otto cycle delivers theoretical maximum thermal efficiency. The traditional design of internal combustion engines using a simple slide-crank mechanism gives no time for a constant volume combustion which significantly reduces the cycle efficiency. In this study, using a high torque, high bandwidth, permanent magnet electric drive system attached to the crankshaft, variable angular velocities of the engine crankshaft were implemented. The system enabled reductions in piston velocity around the top dead centre region to a fraction of its value at constant crankshaft angular velocity typical in conventional engines. A quasi-constant volume combustion has thus been successfully achieved, leading to improvements in engine fuel consumption and power output which are discussed in detail.
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Authors
Citation
Chen, R., Winward, E., Stewart, P., Taylor, B. et al., "Quasi-Constant Volume (QCV) Spark Ignition Combustion," SAE Technical Paper 2009-01-0700, 2009, https://doi.org/10.4271/2009-01-0700.Also In
SI Combustion and Direct Injection SI Engine Technology, 2009
Number: SP-2241; Published: 2009-04-20
Number: SP-2241; Published: 2009-04-20
References
- Stone R. ‘Introduction to Internal Combustion Engines (3rd Edition)’ Macmillan Press Ltd London 0-333-74013-0 1999
- Ge Y. Chen L. Sun F. Wu C. ‘Thermodynamic simulation of performance of an Otto cycle with heat transfer and variable specific heats of working fluid’ International Journal of Thermal Sciences 44 5 2005 506 511
- Shi L. Cui Y. Deng K. Peng H. Chen Y ‘Study of low emission homogeneous charge compression ignition (HCCI) engine using combined internal and external exhaust gas recirculation (EGR)’ Energy 31 14 2006 2665 2676
- Maggetto G. Van Mierlo J. ‘Electric vehicles, hybrid electric vehicles and fuel cell electric vehicles: state of the art and perspectives’ Annales de Chimie Science des Matériaux 26 4 2001 9 26
- Zhong L. Rahman M.F. Hu W.Y. Lim K.W. ‘Analysis of direct torque control in permanent magnet synchronous motor drives” IEEE Trans on Power Electronics 12 3 1997 528 536
- ABB ‘Direct torque control – the world's most advanced AC drive technology’ Technical Guide
- Liu Y. Zhu Z.Q. Howe D. ‘Direct torque control of brushless DC drives with reduced torque ripple’ IEEE Trans. on Industry Applications 41 2 2005 599 608
- Zhu Z.Q. Liu Y. Howe D. ‘Comparison of performance of brushless DC drives under direct torque control and PWM current control’ Korean IEE Int. Trans. On Electrical Machinery and Energy Conversion Systems 5-B 4 2005 337 342
- Stewart P. Stone D.A. Fleming P.J. “Design of robust fuzzy-logic control systems by multi-objective evolutionary methods with hardware in the loop” IFAC Journal of Engineering Applications of Artificial Intelligence 70 3 2004 275 284
- Zhu Z.Q. Howe D ‘Halbach permanent magnet machines and applications: a review’ IEE Proc. Electrical Power Applications 148 4 299 308 2001
- Pillay P. Krishman R. “Modelling, simulation, and analysis of permanent magnet motor drives, Part 1: The permanent magnet synchronous motor drive” IEEE Transactions on industrial applications 25 2 265 273 March/April 1989
- Hindmarsh J. “Electrical machines and drives” Pergamon Press Ltd. UK 1985 0-08-031684-0
- Kim J.M. Sul S.K. “Speed control of interior permanent magnet synchronous motor drive for the flux-weakening operation” IEEE Transactions on Industrial Applications 33 1 43 48 Jan/Feb 1997