NDLI: Grey-box modeling and control of HCCI engine emissions

Content Provider	IEEE Xplore Digital Library
Author	Bidarvatan, M. Thakkar, V. Shahbakhti, M.
Copyright Year	2014
Description	Author affiliation: Dept. of Mech. Eng.-Eng. Mech., Michigan Technol. Univ., Houghton, MI, USA (Bidarvatan, M.; Thakkar, V.; Shahbakhti, M.)
Abstract	Real-time model based control of Homogeneous Charge Compression Ignition (HCCI) engines faces a critical challenge of maintaining a perfect balance between model accuracy and computational load. In particular, currently available HCCI emissions models in the literature are highly computationally expensive for control applications. This paper develops a computationally efficient grey-box HCCI engine model for predicting Total Hydrocarbon (THC), Carbon Monoxide (CO), and Nitrogen Oxides $(NO_{x}).$ The grey-box model consists of a feed forward Artificial Neural Networks (ANN) model in combination with physical models for estimating combustion phasing and Indicated Mean Effective Pressure (IMEP). The emission model is experimentally validated over a large range of HCCI engine operation including 208 steady state test conditions. The validation results show that the grey-box model is able to predict NOx, CO, and THC with average relative errors less than 10%. Using a Genetic Algorithm optimization method along with the developed emission grey-box model, an optimum CA50 trajectory is obtained for every given load trajectory in order to minimize THC and CO emissions. A model-based controller is designed and tested on the grey-box virtual engine model for tracking IMEP and the optimum CA50 trajectories, while indirectly minimizing the engine emissions. Control results show that the developed grey-box model is of utility for real time HCCI control applications.
Starting Page	837
Ending Page	842
File Size	2083508
Page Count	6
File Format	PDF
ISBN	9781479932726
ISSN	07431619
e-ISBN	9781479932740
DOI	10.1109/ACC.2014.6859420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Load modeling Solid modeling Computational modeling Combustion Predictive models Internal combustion engines Automotive
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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