Predictive control for high-EGR SI engines without misfire via flow-based design

This paper introduces a predictive controller that maximizes the EGR ratio in SI engine cylinders and prevents misfires at all throttle operations. However the predictive control problem for the EGR value angle is a nonlinear time-varying one. Therefore, in the proposed controller, the problem is tr...

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Bibliographic Details
Main Authors: Jimbo, T., Tanaka, S., Sata, K., Hibino, R.
Format: Conference Proceeding
Language:English
Subjects:
Atmospheric modeling
Engines
Manifolds
Mathematical model
Predictive control
Upper bound
Valves
Online Access:Request full text
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Summary:This paper introduces a predictive controller that maximizes the EGR ratio in SI engine cylinders and prevents misfires at all throttle operations. However the predictive control problem for the EGR value angle is a nonlinear time-varying one. Therefore, in the proposed controller, the problem is transformed into a time-invariant quadratic one for the EGR flow through the intake valve. As a result, only one controller has to be designed for the entire engine operating range. The effectiveness of the proposed controller is demonstrated using a well-calibrated simulator.
ISSN:0191-2216
DOI:10.1109/CDC.2012.6426807