Model-Based Control of Combustion Phasing in an HCCI Engine

Paper #:
  • 2012-01-1137

Published:
  • 2012-04-16
Citation:
Bidarvatan, M., Shahbakhti, M., and Jazayeri, S., "Model-Based Control of Combustion Phasing in an HCCI Engine," SAE Int. J. Engines 5(3):1163-1176, 2012, https://doi.org/10.4271/2012-01-1137.
Pages:
14
Abstract:
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.
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