منابع مشابه
Optimization-based non-linear Control Law with Increased Robustness for Air Fuel Ratio Control in SI Engines
In spark ignition (SI) engines, the accurate control of air fuel ratio (AFR) in the stoichiometric value is required to reduce emission and fuel consumption. The wide operating range, the inherent nonlinearities and the modeling uncertainties of the engine system are the main difficulties arising in the design of AFR controller. In this paper, an optimization-based nonlinear control law is a...
متن کاملMultiple Arx Model-based Air-fuel Ratio Predictive Control for Si Engines
In this article the predictive control is suggested to control the injection fuel pulse width in such a manner that the air-fuel ratio deviates as little as possible from the stoichiometric ratio during the transients of the engine. The applied control strategy is based on the knowledge of an internal model of the airpath, predicting the change of the air flow through cylinders, and consequentl...
متن کاملObserver Based Feedforward Air-fuel Control of Turbocharged Si-engines
Air-fuel control on turbocharged (TC) SI-engines require precise prediction of the cylinder air-charge (CAC). Using an observer it is possible to both estimate the necessary system states and to provide a framework to design the necessary CAC feedforward controller. Here a mean value engine model of a TC SI-engine is used to develop an observer. The output of the observer is fed as an initial c...
متن کاملDevelopment of a Flame Propagation Model for Dual-Fuel Partially Premixed Compression Ignition Engines
A new combustion model is developed and applied to simulate combustion in dual-fuel engines in which the premixed natural gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a flame propagation model. A G-equation model previously developed to simulate SI engine combustion was incorporated with an auto-ignition model to simu...
متن کاملoptimization-based non-linear control law with increased robustness for air fuel ratio control in si engines
in spark ignition (si) engines, the accurate control of air fuel ratio (afr) in the stoichiometric value is required to reduce emission and fuel consumption. the wide operating range, the inherent nonlinearities and the modeling uncertainties of the engine system are the main difficulties arising in the design of afr controller. in this paper, an optimization-based nonlinear control law is anal...
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ژورنال
عنوان ژورنال: Frontiers in Mechanical Engineering
سال: 2020
ISSN: 2297-3079
DOI: 10.3389/fmech.2020.00048