Closed-Loop Combustion Control of HCCI Engines
(2003) p.321-334- Abstract
- The HCCI engine, with its excellent potential for high efficiency and low NOx emissions, is investigated from a control perspective. Combustion timing, i.e., where in the thermodynamic cycle combustion takes place, is identified
as the most challenging problem with HCCI engine control. A number of different means for controlling combustion timing are suggested, and results using a dual-fuel solution are presented. This solution uses two fuels with different ignition characteristics to control the time of autoignition. Cylinder pressure measurement is suggested for feedback of combustion timing. A simple net-heat
release algorithm is applied to the measurements, and the crank angle of 50% burnt is extracted. Open-loop... (More) - The HCCI engine, with its excellent potential for high efficiency and low NOx emissions, is investigated from a control perspective. Combustion timing, i.e., where in the thermodynamic cycle combustion takes place, is identified
as the most challenging problem with HCCI engine control. A number of different means for controlling combustion timing are suggested, and results using a dual-fuel solution are presented. This solution uses two fuels with different ignition characteristics to control the time of autoignition. Cylinder pressure measurement is suggested for feedback of combustion timing. A simple net-heat
release algorithm is applied to the measurements, and the crank angle of 50% burnt is extracted. Open-loop instability is detected in some high-load regions of the operating range. This phenomenon is explained by positive feedback between the cylinder wall heating and ignition
timing processes. Closed-loop performance is hampered by time delays and model uncertainties. This problem is particularly pronounced at operating points that are open-loop unstable. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/538305
- author
- Tunestål, Per LU ; Olsson, Jan-Ola LU and Johansson, Bengt LU
- organization
- publishing date
- 2003
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- HCCI, Combustion, Engine, Control
- host publication
- Nonlinear and Hybrid Systems in Automotive Control
- editor
- Johansson, Rolf and Rantzer, Anders
- pages
- 321 - 334
- publisher
- Springer
- external identifiers
-
- wos:000179875900014
- project
- Competence Centre for Combustion Processes
- language
- English
- LU publication?
- yes
- id
- 94cc6764-36b7-4479-a370-fd553a9d0793 (old id 538305)
- date added to LUP
- 2016-04-04 11:56:19
- date last changed
- 2018-11-21 21:08:05
@inbook{94cc6764-36b7-4479-a370-fd553a9d0793, abstract = {{The HCCI engine, with its excellent potential for high efficiency and low NOx emissions, is investigated from a control perspective. Combustion timing, i.e., where in the thermodynamic cycle combustion takes place, is identified<br/><br> as the most challenging problem with HCCI engine control. A number of different means for controlling combustion timing are suggested, and results using a dual-fuel solution are presented. This solution uses two fuels with different ignition characteristics to control the time of autoignition. Cylinder pressure measurement is suggested for feedback of combustion timing. A simple net-heat<br/><br> release algorithm is applied to the measurements, and the crank angle of 50% burnt is extracted. Open-loop instability is detected in some high-load regions of the operating range. This phenomenon is explained by positive feedback between the cylinder wall heating and ignition<br/><br> timing processes. Closed-loop performance is hampered by time delays and model uncertainties. This problem is particularly pronounced at operating points that are open-loop unstable.}}, author = {{Tunestål, Per and Olsson, Jan-Ola and Johansson, Bengt}}, booktitle = {{Nonlinear and Hybrid Systems in Automotive Control}}, editor = {{Johansson, Rolf and Rantzer, Anders}}, keywords = {{HCCI; Combustion; Engine; Control}}, language = {{eng}}, pages = {{321--334}}, publisher = {{Springer}}, title = {{Closed-Loop Combustion Control of HCCI Engines}}, url = {{https://lup.lub.lu.se/search/files/5889771/625794.pdf}}, year = {{2003}}, }