Robust control of combustion phasing in Homogenous Charge Compression Ignition (HCCI) engines is a well-recognized challenge limiting the automotive industry for exploiting HCCI benefits in mass production vehicles. Real-time model-based control of combustion phasing is the key to tackle this daunting challenge. In this paper, a new control oriented model is developed for predicting HCCI combustion phasing over a range of engine operation. The model is validated against the experimental data from a single cylinder Ricardo engine. A model-based integral state feedback controller is designed to control HCCI combustion phasing by modulating the ratio of two Primary Reference Fuels (PRFs). The controller's performance is compared with a manually tuned proportional integral controller. The simulation results demonstrate that while both controllers have proper tracking performance, the model-based state feedback controller is more effective in rejecting the external physical disturbances and keeping the engine operation within the desirable range.
Model-Based Control of Combustion Phasing in an HCCI Engine
Sae Int. J. Engines
SAE 2012 World Congress & Exhibition ; 2012
Sae International Journal of Engines ; 5 , 3 ; 1163-1176
2012-04-16
14 pages
Aufsatz (Konferenz)
Englisch
Model-based control of combustion phasing in an HCCI engine
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