Automotive engine hybrid modelling and control for reduction of hydrocarbon emissions

Automotive engine models vary in their complexity depending on the intended application. Pre-prototype performance prediction models can be very complex in order to make accurate predictions. Controller design models need to be as simple as possible since model-based controllers must operate in real...

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Bibliographic Details
Published in:International journal of control 2006-05, Vol.79 (5), p.449-464
Main Authors: Sanketi, P. R., Zavala, J. C., Hedrick, J. K.
Format: Article
Language:English
Subjects:
Applied sciences
Computer science
control theory
systems
Control system synthesis
Control theory. Systems
Engines and turbines
Exact sciences and technology
Internal combustion engines: gazoline engine, diesel engines, etc
Mechanical engineering. Machine design
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Summary:Automotive engine models vary in their complexity depending on the intended application. Pre-prototype performance prediction models can be very complex in order to make accurate predictions. Controller design models need to be as simple as possible since model-based controllers must operate in real time. This paper develops hybrid models for engine control that incorporate time and events in their formulation. The resulting hybrid controllers have the capability of switching between two alternative control modes. The first mode is designed to reduce the raw hydrocarbon (HC) emissions while the second mode tries to increase the temperature of the catalytic converter as rapidly as possible during the initial transient or "cold start" period. Reachability, as a tool for system analysis, is used to verify the properties of the closed loop system.
ISSN:0020-7179
1366-5820
DOI:10.1080/10556780600605079