Homogeneous Charge Compression Ignition on Gasoline Engines

Kulzer, André; Fischer, Wolfgang; Karrelmeyer, Roland; Sauer, Christina; Wintrich, Thomas; Benninger, Klaus

doi:10.1007/bf03227923

Cited by 5 publications

(2 citation statements)

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“…An improvement of fuel consumption up to 21.5 % comparing residual enhanced HCCI with conventional spark-ignited combustion was reported by Kulzer et. al [8]. A fuel consumption reduction of approximately 15-22% running in HCCI mode compared to stoichiometric SI mode was reported by Dahl et al [9].…”

Section: Introductionmentioning

confidence: 82%

Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

Borgqvist

Tunestål

Johansson

2011

SAE Technical Paper Series

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A comparison between throttled and unthrottled spark ignition combustion with residual enhanced HCCI combustion is made. Early intake valve closing and late intake valve closing valve strategies for unthrottled spark ignition combustion are evaluated and compared. Approximately 3-6 percent relative improvement in net indicated efficiency is seen when comparing unthrottled spark ignition combustion with throttled spark ignition combustion depending on valve strategy and engine speed. The relative improvement in efficiency from spark ignition combustion to HCCI combustion is approximately 20 percent for the conditions presented in this study. The rebreathing strategies have the highest efficiency of the cases in this study.

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Section: Introductionmentioning

confidence: 82%

Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

Borgqvist

Tunestål

Johansson

2011

SAE Technical Paper Series

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“…Also a nonlinear observer-based feedback controller for regulating combustion timing during load transitions between static operating points was proposed [8]. Load transient control of IMEP and CA50 by means of PI control extended by a dynamic model-based pilot control was examined, too, and the need for taking noise attributes into account was emphasized [9,10].…”

Section: Introductionmentioning

confidence: 99%

Constrained Nonlinear Predictive Control of Gasoline Low-Temperature Combustion

Hoffmann

Abel

2011

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Résumé -Réglage d'une prédictive non-linéaire avec réalisation des limitations pour la combustion de l'essence à basse température -La combustion de l'essence avec une grande quantité de gaz d'échappement recirculés suscite de plus en plus d'intérêt. Dans de telles conditions de charge partielle, on peut atteindre une température maximale de combustion faible, ce qui donne moins d'émissions mais provoque des instabilités du processus et un comportement fortement non-linéaire. Ces propriétés rendent nécessaire une commande en boucle fermée pour le fonctionnement en transitoire, dont la synthèse constitue un véritable défi. Le papier présente une commande NMPC (prédictive non-linéaire basée sur modèle) innovante pour réguler la PME (Pression Moyenne Efficace) et le CA50 (angle du vilebrequin où 50 % de la masse de carburant est brûlée), tout en tenant compte des contraintes sur la dpmax (montée en pression maximale). La mise en oeuvre du régulateur est présentée dans un cadre de prototypage rapide de la commande (RCP) permettant à l'utilisateur de mettre en place, dans un court délai, un régulateur complexe pour le fonctionnement en transitoire. Le potentiel de l'approche est démontré par application sur le moteur réel. Rapid Control Prototyping (RCP) enabling the user to set up a complex controller for transient operation in a short time frame. The ability of the approach is proved by application to the real engine. Abstract -Constrained Nonlinear Predictive Control of Gasoline Low-Temperature CombustionCombustion of a gasoline fuel with a high amount of recirculated exhaust gas is increasingly gaining interest. Such in part load conditions, a low combustion peak temperature can be achieved, which yields lowest emissions but suffers from instabilities of the process and a highly nonlinear behavior. These properties make a closed-loop control a requirement for transient operation but also a challenge. The paper presents an innovative Nonlinear Model-based Predictive Controller (NMPC) for controlling the Indicated Mean Effective Pressure (IMEP) and Crank Angle of 50% burnt mass fraction (CA50) while accounting for constraints on the maximum pressure rise (dpmax). The implementation of the controller is presented in a framework for

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Control of Gasoline Engines

Isermann

2014

Engine Modeling and Control

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Homogeneous Charge Compression Ignition on Gasoline Engines

Cited by 5 publications

References 1 publication

Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

Constrained Nonlinear Predictive Control of Gasoline Low-Temperature Combustion

Control of Gasoline Engines

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