Air-to-fuel ratio control of spark ignition engines using Gaussian network sliding control

1998 ◽  
Vol 6 (5) ◽  
pp. 678-687 ◽  
Author(s):  
Mooncheol Won ◽  
S.B. Choi ◽  
J.K. Hedrick
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Sliding Control ◽  
Fuel Ratio ◽  
Gaussian Network

In-Cylinder Air Fuel Ratio and Combustion Control for Spark Ignition Engines

1995 ◽  
Author(s):  
Minoru Ohsuga ◽  
Jun'ichi Yamaguchi ◽  
Ryuhei Kawabe ◽  
Masakichi Momono
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Combustion Control ◽  
Fuel Ratio

Air-Fuel Ratio Control of Spark Ignition Engines With TWC Using LPV Techniques

2009 ◽  
Author(s):  
Rohit A. Zope ◽  
Javad Mohammadpour ◽  
Karolos M. Grigoriadis ◽  
Matthew Franchek
Keyword(s):  
Design Method ◽  
Spark Ignition ◽  
Operating Conditions ◽  
System Stability ◽  
Linear Matrix ◽  
Pi Control ◽  
Spark Ignition Engines ◽  
Si Engine ◽  
Precise Control ◽  
Fuel Ratio

Precise control of the air-fuel ratio in a spark ignition (SI) engine is important to minimize emissions. The emission reduction strongly depends on the performance of the air-fuel ratio controller for the SI engine in conjunction with the Three Way Catalytic (TWC) converter. The TWC converter acts as a buffer to any variations occurring in the air-fuel ratio. It stores oxygen during a lean operation and releases the stored oxygen during a rich transient phase. The stored oxygen must be maintained close to the current storage capacity to yield maximum benefits from the TWC converter. Traditionally this is achieved using a simple PI control or a gain-scheduled PI control to address the variability in the operating conditions of the engine. This, however, does not guarantee closed-loop system stability and/or performance. In this work a model-based linear parameter varying (LPV) approach is used to design an H∞ controller. The design goal is to minimize the effect of disturbances on the air-fuel ratio and hence the relative storage level of oxygen in the TWC, over a defined operating range for the SI engine. The design method formulated in terms of Linear Matrix Inequalities (LMIs) leads to a convex optimization problem which can be efficiently solved using existing interior-point optimization algorithms. Simulations performed validate the proposed control design methodology.

Inverse adaptive air-fuel ratio control in spark ignition engines

2016 ◽  
Author(s):  
Dmitry N. Gerasimov ◽  
Mikhail E. Belyaev ◽  
Vladimir O. Nikiforov ◽  
Hossein Javaherian ◽  
Shifang Li ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Fuel Ratio

A Dynamic Sliding Manifold for Air-fuel Ratio Control in Lean-Burn Spark Ignition Engines

2012 ◽  
Author(s):  
Behrouz Ebrahimi ◽  
Reza Tafreshi ◽  
Javad Mohammadpour ◽  
Houshang Masudi ◽  
Matthew A. Franchek ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Lean Burn ◽  
Fuel Ratio ◽  
Sliding Manifold
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