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Closed-Loop Control of Combustion Phasing in an HCCI Engine Using VVA and Variable EGR

Henningsson, Maria LU ; Ekholm, Kent LU ; Strandh, Petter LU ; Johansson, Rolf LU ; Tunestål, Per LU and Johansson, Bengt LU (2007) 5th IFAC Symposion on Advances in Automotive Control
Abstract
A homogeneous charge compression ignition (HCCI) engine requires closed-loop control of combustion phasing for reliable operation. Variable valve actuation (VVA) has previously been shown to enable cycle-to-cycle, cylinder-individual control with high precision, but suffers from a narrow operating range. Adding variable exhaust gas recirculation (EGR) to the closed-loop control structure can extend the operating range. A mid-ranging control structure is presented here for combined VVA and EGR actuations in a multi-cylinder engine. The control structure is simple to implement and preserves the fast, cylinderindividual, and precise actuation of the VVA system while extending the operating range. Experimental results verify the performance of... (More)
A homogeneous charge compression ignition (HCCI) engine requires closed-loop control of combustion phasing for reliable operation. Variable valve actuation (VVA) has previously been shown to enable cycle-to-cycle, cylinder-individual control with high precision, but suffers from a narrow operating range. Adding variable exhaust gas recirculation (EGR) to the closed-loop control structure can extend the operating range. A mid-ranging control structure is presented here for combined VVA and EGR actuations in a multi-cylinder engine. The control structure is simple to implement and preserves the fast, cylinderindividual, and precise actuation of the VVA system while extending the operating range. Experimental results verify the performance of the control structure. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
EGR, VVA, HCCI, Mid-ranging control
conference name
5th IFAC Symposion on Advances in Automotive Control
external identifiers
  • scopus:79961058184
language
English
LU publication?
yes
id
5c4f0697-988c-4d10-b89e-33703bf801b4 (old id 984688)
date added to LUP
2008-01-29 09:50:47
date last changed
2017-09-10 05:00:11
@misc{5c4f0697-988c-4d10-b89e-33703bf801b4,
  abstract     = {A homogeneous charge compression ignition (HCCI) engine requires closed-loop control of combustion phasing for reliable operation. Variable valve actuation (VVA) has previously been shown to enable cycle-to-cycle, cylinder-individual control with high precision, but suffers from a narrow operating range. Adding variable exhaust gas recirculation (EGR) to the closed-loop control structure can extend the operating range. A mid-ranging control structure is presented here for combined VVA and EGR actuations in a multi-cylinder engine. The control structure is simple to implement and preserves the fast, cylinderindividual, and precise actuation of the VVA system while extending the operating range. Experimental results verify the performance of the control structure.},
  author       = {Henningsson, Maria and Ekholm, Kent and Strandh, Petter and Johansson, Rolf and Tunestål, Per and Johansson, Bengt},
  keyword      = {EGR,VVA,HCCI,Mid-ranging control},
  language     = {eng},
  title        = {Closed-Loop Control of Combustion Phasing in an HCCI Engine Using VVA and Variable EGR},
  year         = {2007},
}