Hybrid Model Predictive Control of Exhaust Recompression HCCI

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Abstract

Homogeneous charge compression ignition (HCCI) holds promise for reduced emissions and increased efficiency compared to conventional internal combustion engines. As HCCI lacks direct actuation over the combustion phasing, much work has been devoted to designing controllers capable of set-point tracking and disturbance rejection. This paper presents results on model predictive control (MPC) of the combustion phasing in an HCCI engine based on a hybrid model formulation composed of several linearizations of a physics-based nonlinear model. The explicit representation of the MPC was implemented experimentally and the performance during set point changes was compared to that of a switched state feedback controller. The hybrid MPC produced smoother transients without overshoot when the set point change traversed several linearizations.

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  • Control Engineering
Original languageEnglish
Pages (from-to)370-381
JournalAsian Journal of Control
Volume16
Issue number2
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes