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Aplikačné možnosti HCCI technológie
Technológ, 2023This text describes the current state of the art of HCCI technology, which is based on combining the characteristics of a petrol and diesel engine. HCCI engines offer higher fuel efficiency and lower nitrogen oxide emissions. However, they also have disadvantages such as limited load range, control complexity and cold weather starting problems.
Matúš Lavčák, Michal Puškár
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2012
Due to the possibility of increased efficiency and reduced emissions, Homogeneous Charge Compression Ignition (HCCI) is a promising alternative to conventional internal combustion engines. Ignition timing in HCCI is highly sensitive to operating conditions and lacks direct actuation, making it a challenging subject for closed-loop control.
Anders Widd +2 more
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Due to the possibility of increased efficiency and reduced emissions, Homogeneous Charge Compression Ignition (HCCI) is a promising alternative to conventional internal combustion engines. Ignition timing in HCCI is highly sensitive to operating conditions and lacks direct actuation, making it a challenging subject for closed-loop control.
Anders Widd +2 more
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Method of ion current detection for HCCI combustion on SI/HCCI dual mode engine
2009 IEEE Intelligent Vehicles Symposium, 2009With the advantages of high thermal efficiency and extra low NOx and soot emissions, homogeneous charge compression ignition (HCCI) combustion has become a promising combustion method. Comparing with the SI engine or diesel engine, it is hardly to control combustion phase and combustion period on a HCCI engine directly.
null Guangyu Dong +4 more
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2014
HCCI (Homogeneous Charge Compression Ignition) is a very control-intensive combustion concept which has been studied for over a decade because of its favorable combination of high efficiency and low emissions. Various optimal control methods have been applied to HCCI and this chapter gives an overview of them.
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HCCI (Homogeneous Charge Compression Ignition) is a very control-intensive combustion concept which has been studied for over a decade because of its favorable combination of high efficiency and low emissions. Various optimal control methods have been applied to HCCI and this chapter gives an overview of them.
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Load Control for an HCCI Engine
SAE Technical Paper Series, 2005<div class="htmlview paragraph">Homogeneous-Charge-Compression-Ignition (HCCI) engine operation in a vehicle drive cycle is a very dynamic process. In this paper, a controller is devised on the premise that the vehicle is operating under Drive-By-Wire so that the driver commands the engine torque output according to the perceived vehicle speed ...
Jeff Matthews +2 more
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HCCI combustion: Effect of NO in EGR
Proceedings of the Combustion Institute, 2007Abstract Experiments were performed for the oxidation of mixtures of n-heptane and iso-octane and of n-heptane and toluene in a jet-stirred reactor (JSR) under dilute conditions, at 10 atm. The effect of the addition of variable initial NO concentration was also studied. A detailed kinetic model was performed to rationalize the results.
Anthony Dubreuil +4 more
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Effect of Turbulence on HCCI Combustion
SAE Technical Paper Series, 2007<div class="htmlview paragraph">This paper presents large eddy simulation (LES) and experimental studies of the combustion process of ethanol/air mixture in an experimental optical HCCI engine. The fuel is injected to the intake port manifolds to generate uniform fuel/air mixture in the cylinder.
R. X. Yu +9 more
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HCCI engine modelling for control
2023To meet future environmental challenges and more stringent emISSIOn legislation, Homogeneous Charge Compression Ignition (HCCI) has been proposed as a promising alternative to conventional combustion strategies. Heel engines offer thermal efficiencies comparable to those attained by high compression ratio diesel engines while maintaining the smoke free
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AN EXPERIMENTAL STUDY OF BIOETHANOL HCCI
Combustion Science and Technology, 2005ABSTRACT Bioethanol has been successfully used in conventional spark ignition (SI) internal combustion engines. Homogeneous charge compression ignition (HCCI) combustion, a novel combustion method, has shown the potential for low nitric oxides (NOx) emissions with no particulate matter formation.
D. YAP +2 more
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Influence of homogeneity on HCCI combustion
ATZautotechnology, 2005A new laser technique for detecting the air/fuel mixture in the combustion process is presented as a method for improving cycle-by-cycle variations in an HCCI engine.
Ryo Hasegawa +7 more
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