Transient Control of Combustion Phasing and Lambda in a Six-Cylinder Port-Injected Natural-Gas Engine
(2010) In Journal of Engineering for Gas Turbines and Power 132(9).- Abstract
- Fuel economy and emissions are the two central parameters in heavy duty engines. High exhaust gas recirculation 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.... (More)
- Fuel economy and emissions are the two central parameters in heavy duty engines. High exhaust gas recirculation 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 six-cylinder port injected natural gas engine. Model predictive control was used to control lambda, which was modeled using system identification. Furthermore, a proportional integral regulator combined with a feedforward map for obtaining maximum brake torque timing was applied. The results show that excellent steady-state and transient performance can be achieved. [DOI: 10.1115/1.4000605] (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1630077
- author
- Kaiadi, Mehrzad LU ; Lewander, Magnus LU ; Borgqvist, Patrick LU ; Tunestål, Per LU and Johansson, Bengt LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Engineering for Gas Turbines and Power
- volume
- 132
- issue
- 9
- publisher
- American Society Of Mechanical Engineers (ASME)
- external identifiers
-
- wos:000279031700017
- scopus:77955242158
- ISSN
- 1528-8919
- DOI
- 10.1115/1.4000605
- project
- Competence Centre for Combustion Processes
- language
- English
- LU publication?
- yes
- id
- e1dda374-9811-490c-8117-970edeba6422 (old id 1630077)
- date added to LUP
- 2016-04-01 10:43:30
- date last changed
- 2022-01-26 01:52:54
@article{e1dda374-9811-490c-8117-970edeba6422,
abstract = {{Fuel economy and emissions are the two central parameters in heavy duty engines. High exhaust gas recirculation 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 six-cylinder port injected natural gas engine. Model predictive control was used to control lambda, which was modeled using system identification. Furthermore, a proportional integral regulator combined with a feedforward map for obtaining maximum brake torque timing was applied. The results show that excellent steady-state and transient performance can be achieved. [DOI: 10.1115/1.4000605]}},
author = {{Kaiadi, Mehrzad and Lewander, Magnus and Borgqvist, Patrick and Tunestål, Per and Johansson, Bengt}},
issn = {{1528-8919}},
language = {{eng}},
number = {{9}},
publisher = {{American Society Of Mechanical Engineers (ASME)}},
series = {{Journal of Engineering for Gas Turbines and Power}},
title = {{Transient Control of Combustion Phasing and Lambda in a Six-Cylinder Port-Injected Natural-Gas Engine}},
url = {{http://dx.doi.org/10.1115/1.4000605}},
doi = {{10.1115/1.4000605}},
volume = {{132}},
year = {{2010}},
}