Model Based Control of a Three-way Catalytic Converter Based on the Oxygen Storage Level of the Catalyst

2017 ◽  
Author(s):  
Pankaj Kumar ◽  
Imad Makki
Keyword(s):  
Catalytic Converter ◽  
Oxygen Storage ◽  
Model Based Control ◽  
Model Based

scholarly journals On a Model-Based Control of a Three-Way Catalytic Converter

2001 ◽  
Author(s):  
M. Balenovic ◽  
A. C. P. M. Backx ◽  
J. H. B. J. Hoebink
Keyword(s):  
Catalytic Converter ◽  
Model Based Control ◽  
Model Based

Model-Based Predictive Control and Dithering Control for an Integrated Gasoline Engine and Three-Way Catalytic Converter System

2021 ◽  
Author(s):  
Kuo Yang ◽  
Pingen Chen
Keyword(s):  
Predictive Control ◽  
Gasoline Engine ◽  
Catalytic Converter ◽  
Fuel Efficiency ◽  
Operating Conditions ◽  
Oxygen Storage ◽  
Model Based ◽  
Emission Regulation ◽  
Fuel Efficiency Improvement ◽  
Conversion Efficiencies

Abstract Controls of integrated gasoline engine and after-treatment systems are critical for fuel efficiency improvement and emission regulation. This paper aims to develop novel model-based Three-Way Catalytic converter (TWC) controls to reduce the fuel consumption and tailpipe emissions for a gasoline engine. A model-based dither control and a nonlinear model predictive control (MPC)-based control, are presented, respectively. The proposed TWC dither control utilizes a systematically designed dither cycle configuration (including dithering amplitude, offset, and frequency) based on a control-oriented model, with the capability to adapt the dither cycle configuration to various engine operating conditions. The MPC control can optimize engine air-fuel ratio (AFR) to maintain the oxygen storage of TWC at a desired level and thus meet the tailpipe NOx, CO and HC emission requirements. The efficacies of both model-based TWC controls are validated in simulation with MPC control improving CO emission conversion efficiencies by 8.42% and 4.85% in simplified US06 and UDDS driving cycles, when compared to a baseline dithering-based AFR control. Meanwhile, NOx emission conversion efficiency is maintained above the required limit of 95%, while the fuel efficiency remains at the same level as the baseline control methodology.

Model-based Control Techniques for Large-Scale High-Precision Stage

2020 ◽  
Vol 140 (4) ◽  
pp. 272-280
Author(s):  
Wataru Ohnishi ◽  
Hiroshi Fujimoto ◽  
Koichi Sakata
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Model Based Control ◽  
Precision Stage ◽  
Control Techniques ◽  
Model Based
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