Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine

Mehrzad Kaiadi; Magnus Lewander; Patrick Borgqvist; Per Tunestål; Bengt Johansson

doi:10.1115/ICES2009-76004

Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine

Mehrzad Kaiadi, Magnus Lewander, Patrick Borgqvist, Per Tunestål, Bengt Johansson

Combustion Engines

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

299 Downloads (Pure)

Abstract

Fuel economy and emissions are the two central parameters in heavy duty engines. High EGR rates combined with turbocharging has been identified as a promising way to increase the maximum load and efficiency of heavy duty spark ignition engines. With stoichiometric conditions a three way catalyst can be used which keeps the regulated emissions at very low levels. The Lambda window which results in very low emissions is very narrow. This issue is more complex with transient operation resulting in losing brake efficiency and also catalyst converting efficiency.

This paper presents different control strategies to maximize the reliability for maintaining efficiency and emissions levels under transient conditions. Different
controllers are developed and tested successfully on a heavy duty 6-cylinder port injected natural gas engine. Model Predictive Control (MPC) was used to control lambda which was modeled using System Identification. Furthermore, a Proportional Integral (PI) regulator combined with a feedforward map for obtaining Maximum Brake Torque (MBT) timing was applied. The results show that excellent steady-state and transient performance can be achieved.

Original language	English
Title of host publication	Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference
Publisher	American Society Of Mechanical Engineers (ASME)
Pages	655-662
Number of pages	8
ISBN (Print)	978-0-7918-4340-6
DOIs	https://doi.org/10.1115/ICES2009-76004
Publication status	Published - 2009
Event	Internal Combustion Engine Division 2009 Spring Technical Conference - Milwaukee, Wisconsin Duration: 2009 May 3 → …

Conference

Conference	Internal Combustion Engine Division 2009 Spring Technical Conference
Period	2009/05/03 → …

Subject classification (UKÄ)

Energy Engineering

Free keywords

Internal Combustion Engine
Natural Gas
Control
Transient

Access to Document

10.1115/ICES2009-76004

Paper_4

1 Doctoral Thesis (monograph)

Diluted Operation of a Heavy-Duty Natural Gas Engine - Aiming at Improved Effciency, Emission and Maximum Load
Kaiadi, M., 2011, Tryckeriet i E-huset, Lunds universitet. 109 p.
Research output: Thesis › Doctoral Thesis (monograph)

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Cite this

Kaiadi, M., Lewander, M., Borgqvist, P., Tunestål, P., & Johansson, B. (2009). Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine. In Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference (pp. 655-662). Article ICES2009-76004 American Society Of Mechanical Engineers (ASME). https://doi.org/10.1115/ICES2009-76004

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title = "Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine",

abstract = "Fuel economy and emissions are the two central parameters in heavy duty engines. High EGR rates combined with turbocharging has been identified as a promising way to increase the maximum load and efficiency of heavy duty spark ignition engines. With stoichiometric conditions a three way catalyst can be used which keeps the regulated emissions at very low levels. The Lambda window which results in very low emissions is very narrow. This issue is more complex with transient operation resulting in losing brake efficiency and also catalyst converting efficiency. This paper presents different control strategies to maximize the reliability for maintaining efficiency and emissions levels under transient conditions. Different controllers are developed and tested successfully on a heavy duty 6-cylinder port injected natural gas engine. Model Predictive Control (MPC) was used to control lambda which was modeled using System Identification. Furthermore, a Proportional Integral (PI) regulator combined with a feedforward map for obtaining Maximum Brake Torque (MBT) timing was applied. The results show that excellent steady-state and transient performance can be achieved.",

keywords = "Internal Combustion Engine, Natural Gas, Control, Transient",

author = "Mehrzad Kaiadi and Magnus Lewander and Patrick Borgqvist and Per Tunest{\aa}l and Bengt Johansson",

year = "2009",

doi = "10.1115/ICES2009-76004",

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isbn = "978-0-7918-4340-6",

pages = "655--662",

booktitle = "Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference",

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address = "United States",

note = "Internal Combustion Engine Division 2009 Spring Technical Conference ; Conference date: 03-05-2009",

}

Kaiadi, M, Lewander, M, Borgqvist, P, Tunestål, P & Johansson, B 2009, Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine. in Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference., ICES2009-76004, American Society Of Mechanical Engineers (ASME), pp. 655-662, Internal Combustion Engine Division 2009 Spring Technical Conference, 2009/05/03. https://doi.org/10.1115/ICES2009-76004

Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine. / Kaiadi, Mehrzad; Lewander, Magnus; Borgqvist, Patrick et al.
Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference. American Society Of Mechanical Engineers (ASME), 2009. p. 655-662 ICES2009-76004.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine

AU - Kaiadi, Mehrzad

AU - Lewander, Magnus

AU - Borgqvist, Patrick

AU - Tunestål, Per

AU - Johansson, Bengt

PY - 2009

Y1 - 2009

N2 - Fuel economy and emissions are the two central parameters in heavy duty engines. High EGR rates combined with turbocharging has been identified as a promising way to increase the maximum load and efficiency of heavy duty spark ignition engines. With stoichiometric conditions a three way catalyst can be used which keeps the regulated emissions at very low levels. The Lambda window which results in very low emissions is very narrow. This issue is more complex with transient operation resulting in losing brake efficiency and also catalyst converting efficiency. This paper presents different control strategies to maximize the reliability for maintaining efficiency and emissions levels under transient conditions. Different controllers are developed and tested successfully on a heavy duty 6-cylinder port injected natural gas engine. Model Predictive Control (MPC) was used to control lambda which was modeled using System Identification. Furthermore, a Proportional Integral (PI) regulator combined with a feedforward map for obtaining Maximum Brake Torque (MBT) timing was applied. The results show that excellent steady-state and transient performance can be achieved.

AB - Fuel economy and emissions are the two central parameters in heavy duty engines. High EGR rates combined with turbocharging has been identified as a promising way to increase the maximum load and efficiency of heavy duty spark ignition engines. With stoichiometric conditions a three way catalyst can be used which keeps the regulated emissions at very low levels. The Lambda window which results in very low emissions is very narrow. This issue is more complex with transient operation resulting in losing brake efficiency and also catalyst converting efficiency. This paper presents different control strategies to maximize the reliability for maintaining efficiency and emissions levels under transient conditions. Different controllers are developed and tested successfully on a heavy duty 6-cylinder port injected natural gas engine. Model Predictive Control (MPC) was used to control lambda which was modeled using System Identification. Furthermore, a Proportional Integral (PI) regulator combined with a feedforward map for obtaining Maximum Brake Torque (MBT) timing was applied. The results show that excellent steady-state and transient performance can be achieved.

KW - Internal Combustion Engine

KW - Natural Gas

KW - Control

KW - Transient

U2 - 10.1115/ICES2009-76004

DO - 10.1115/ICES2009-76004

M3 - Paper in conference proceeding

SN - 978-0-7918-4340-6

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EP - 662

BT - Proceedings of the Internal Combustion Engine Division 2009 Spring Technical Conference

PB - American Society Of Mechanical Engineers (ASME)

T2 - Internal Combustion Engine Division 2009 Spring Technical Conference

Y2 - 3 May 2009

ER -

Transient Control of Combustion Phasing and Lambda in a 6-Cylinder Port-Injected Natural-gas Engine

Abstract

Conference

Subject classification (UKÄ)

Free keywords

Access to Document

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Research output

Diluted Operation of a Heavy-Duty Natural Gas Engine - Aiming at Improved Effciency, Emission and Maximum Load

Cite this