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Physics-Based Model Predictive Control of HCCI Combustion Phasing Using Fast Thermal Management and VVA

Widd, Anders LU ; Ekholm, Kent LU ; Tunestål, Per LU and Johansson, Rolf LU (2012) In IEEE Transactions on Control Systems Technology 20(3). p.688-699
Abstract
Homogeneous charge compression ignition (HCCI) is a promising internal combustion engine concept. It holds promise of combining low emission levels with high efficiency. However, as ignition timing in HCCI operation lacks direct actuation and is highly sensitive to operating conditions and disturbances, robust closed-loop control is necessary. To facilitate control design and allow for porting of both models and the resulting controllers between different engines, physics-based mathematical models of HCCI are of interest. This paper presents work on a physical model of HCCI including cylinder wall temperature and evaluates predictive controllers based on linearizations of the model. The model was derived using first principles and... (More)
Homogeneous charge compression ignition (HCCI) is a promising internal combustion engine concept. It holds promise of combining low emission levels with high efficiency. However, as ignition timing in HCCI operation lacks direct actuation and is highly sensitive to operating conditions and disturbances, robust closed-loop control is necessary. To facilitate control design and allow for porting of both models and the resulting controllers between different engines, physics-based mathematical models of HCCI are of interest. This paper presents work on a physical model of HCCI including cylinder wall temperature and evaluates predictive controllers based on linearizations of the model. The model was derived using first principles and formulated on a cycle-to-cycle basis. The resulting model was of second order with two inputs and two outputs. Measurement data including cylinder wall temperature measurements was used for calibration and validation of the model. Predictive control of the combustion phasing was then evaluated experimentally using ethanol as fuel. The control signals were the intake temperature and the inlet valve closing timing. The control performance was evaluated in terms of response time and steady-state output variance. Multi-cylinder control experiments were also carried out. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
IEEE Transactions on Control Systems Technology
volume
20
issue
3
pages
688 - 699
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • WOS:000302699100011
  • Scopus:84859905700
ISSN
1558-0865
DOI
10.1109/TCST.2011.2128871
language
English
LU publication?
yes
id
37ed568b-0175-4cba-b20a-f2a21e4cd9ca (old id 1973945)
date added to LUP
2011-06-03 14:39:48
date last changed
2016-10-30 04:37:07
@misc{37ed568b-0175-4cba-b20a-f2a21e4cd9ca,
  abstract     = {Homogeneous charge compression ignition (HCCI) is a promising internal combustion engine concept. It holds promise of combining low emission levels with high efficiency. However, as ignition timing in HCCI operation lacks direct actuation and is highly sensitive to operating conditions and disturbances, robust closed-loop control is necessary. To facilitate control design and allow for porting of both models and the resulting controllers between different engines, physics-based mathematical models of HCCI are of interest. This paper presents work on a physical model of HCCI including cylinder wall temperature and evaluates predictive controllers based on linearizations of the model. The model was derived using first principles and formulated on a cycle-to-cycle basis. The resulting model was of second order with two inputs and two outputs. Measurement data including cylinder wall temperature measurements was used for calibration and validation of the model. Predictive control of the combustion phasing was then evaluated experimentally using ethanol as fuel. The control signals were the intake temperature and the inlet valve closing timing. The control performance was evaluated in terms of response time and steady-state output variance. Multi-cylinder control experiments were also carried out.},
  author       = {Widd, Anders and Ekholm, Kent and Tunestål, Per and Johansson, Rolf},
  issn         = {1558-0865},
  language     = {eng},
  number       = {3},
  pages        = {688--699},
  publisher    = {ARRAY(0x5d00338)},
  series       = {IEEE Transactions on Control Systems Technology},
  title        = {Physics-Based Model Predictive Control of HCCI Combustion Phasing Using Fast Thermal Management and VVA},
  url          = {http://dx.doi.org/10.1109/TCST.2011.2128871},
  volume       = {20},
  year         = {2012},
}