Iterative adaptive air/fuel ratio control
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Author / Producer
Date
2007
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
This paper addresses the air-fuel (A/F) ratio control of an SI engine with a wide-range lambda sensor whose time constant may change during operation. For the feedback control of the A/F ratio, an internal model controller (IMC) is employed. Based on the concept of iterative feedback tuning (IFT), the current value of the sensor time constant needed for the adaptation of the IMC-controller is found by doing well-predefined experiments on the closed-loop control system. The effectiveness of this method is demonstrated with simulations and real experiments on an engine test bench.
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Publication status
published
Editor
Book title
5th IFAC Symposium on Advances in Automotive Control
Journal / series
Volume
40 (10)
Pages / Article No.
593 - 599
Publisher
Elsevier
Event
5th IFAC Symposium on Advances in Automotive Control (AAC 2007)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
automotive control;air-fuel ratio; adaptive control; iterative feedback tuning; internal model control; identification for control
Organisational unit
03286 - Guzzella, Lino (emeritus) / Guzzella, Lino (emeritus)