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Hybrid control of homogeneous charge compression ignition (HCCI) engine dynamics

Bengtsson, Johan LU ; Strandh, Petter LU ; Johansson, Rolf LU ; Tunestål, Per LU and Johansson, Bengt LU (2006) In International Journal of Control 79(5). p.422-448
Abstract
The homogeneous charge compression ignition ( HCCI) combustion engine principle lacks direct ignition timing control, instead the auto-ignition depends on the operating condition. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, fast combustion phasing control is necessary for reliable operation. For this paper, a six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time. Sensors, actuators and control structures for control of the HCCI combustion were compared. Among several actuators for HCCI engine control suggested, two actuators were compared-i.e., dual-fuel actuation and variable valve actuation (VVA). As for control principles, model predictive control (MPC) has... (More)
The homogeneous charge compression ignition ( HCCI) combustion engine principle lacks direct ignition timing control, instead the auto-ignition depends on the operating condition. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, fast combustion phasing control is necessary for reliable operation. For this paper, a six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time. Sensors, actuators and control structures for control of the HCCI combustion were compared. Among several actuators for HCCI engine control suggested, two actuators were compared-i.e., dual-fuel actuation and variable valve actuation (VVA). As for control principles, model predictive control (MPC) has several desirable features and today MPC can be applied to relatively fast systems, such as VVA and dual-fuel actuation. For sensor feedback control of the HCCI engine, cylinder pressure and ion current - i.e., the electronic conductive properties in the reaction zone - were compared. Combustion phasing control based on ion current was compared to control based on cylinder pressure. For the purpose of control synthesis requiring dynamic models, system identification provided models of the HCCI combustion, the models being validated by stochastic model validation. With such models providing a basis for model-based control, MPC control results were compared to PID and LQG control results. While satisfying the constraints on cylinder pressure, both control of the combustion phasing and control of load torque was achieved with simultaneous minimization of the fuel consumption and emissions. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Control
volume
79
issue
5
pages
422 - 448
publisher
Taylor & Francis
external identifiers
  • wos:000236576900004
  • scopus:33645722487
ISSN
0020-7179
DOI
10.1080/00207170600587085
project
HCCI Control
HYCON—Hybrid Control: Taming Heterogeneity and Complexity of Networked Embedded Systems
language
English
LU publication?
yes
id
cb50cbb4-e5d3-4461-99c4-2a09581fa8a6 (old id 414459)
date added to LUP
2016-04-01 12:31:23
date last changed
2020-01-22 02:53:51
@article{cb50cbb4-e5d3-4461-99c4-2a09581fa8a6,
  abstract     = {The homogeneous charge compression ignition ( HCCI) combustion engine principle lacks direct ignition timing control, instead the auto-ignition depends on the operating condition. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, fast combustion phasing control is necessary for reliable operation. For this paper, a six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time. Sensors, actuators and control structures for control of the HCCI combustion were compared. Among several actuators for HCCI engine control suggested, two actuators were compared-i.e., dual-fuel actuation and variable valve actuation (VVA). As for control principles, model predictive control (MPC) has several desirable features and today MPC can be applied to relatively fast systems, such as VVA and dual-fuel actuation. For sensor feedback control of the HCCI engine, cylinder pressure and ion current - i.e., the electronic conductive properties in the reaction zone - were compared. Combustion phasing control based on ion current was compared to control based on cylinder pressure. For the purpose of control synthesis requiring dynamic models, system identification provided models of the HCCI combustion, the models being validated by stochastic model validation. With such models providing a basis for model-based control, MPC control results were compared to PID and LQG control results. While satisfying the constraints on cylinder pressure, both control of the combustion phasing and control of load torque was achieved with simultaneous minimization of the fuel consumption and emissions.},
  author       = {Bengtsson, Johan and Strandh, Petter and Johansson, Rolf and Tunestål, Per and Johansson, Bengt},
  issn         = {0020-7179},
  language     = {eng},
  number       = {5},
  pages        = {422--448},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Control},
  title        = {Hybrid control of homogeneous charge compression ignition (HCCI) engine dynamics},
  url          = {http://dx.doi.org/10.1080/00207170600587085},
  doi          = {10.1080/00207170600587085},
  volume       = {79},
  year         = {2006},
}