Improving ion current feedback for HCCI engine control
(2007) Powertrain and Fluid Systems Conference and Exhibition, 2007- Abstract
In HCCI you do not have the same control of the combustion like in SI and Diesel engines. Controlling the start of a combustion event is a difficult task and requires feedback from previous cycles. This feedback can be retrieved from ion current measurements. By applying a voltage over the spark gap, ions will lead a current and a signal that represents the combustion in the cylinder will be retrieved. Voltages of 450 V were used. The paper describes a new method to enhance the combustion phasing from the Ion current trace in HCCI engines. The method is using the knowledge of how the signal should look. This is known due to the fact that the shape of the ion current signal is similar from cycle to cycle. This new observation is shown in... (More)
In HCCI you do not have the same control of the combustion like in SI and Diesel engines. Controlling the start of a combustion event is a difficult task and requires feedback from previous cycles. This feedback can be retrieved from ion current measurements. By applying a voltage over the spark gap, ions will lead a current and a signal that represents the combustion in the cylinder will be retrieved. Voltages of 450 V were used. The paper describes a new method to enhance the combustion phasing from the Ion current trace in HCCI engines. The method is using the knowledge of how the signal should look. This is known due to the fact that the shape of the ion current signal is similar from cycle to cycle. This new observation is shown in the paper. Also the correlation between the ion current and CA50 was studied. Later the signals have been used for combustion feedback.
(Less)
- author
- Aulin, Hans LU ; Bentioulis, Pascal ; Tunestål, Per LU ; Hyvönen, Jari LU and Johansson, Bengt LU
- organization
- publishing date
- 2007
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Powertrain and Fluid Systems Conference and Exhibition
- article number
- 2007-01-4053
- conference name
- Powertrain and Fluid Systems Conference and Exhibition, 2007
- conference location
- Rosemont, IL, United States
- conference dates
- 2007-10-29 - 2007-11-01
- external identifiers
-
- scopus:85072431472
- DOI
- 10.4271/2007-01-4053
- language
- English
- LU publication?
- yes
- id
- ee4c3f95-2b16-413d-ae61-b1ae2d283c18
- date added to LUP
- 2017-12-15 08:40:16
- date last changed
- 2022-01-31 00:38:44
@inproceedings{ee4c3f95-2b16-413d-ae61-b1ae2d283c18, abstract = {{<p>In HCCI you do not have the same control of the combustion like in SI and Diesel engines. Controlling the start of a combustion event is a difficult task and requires feedback from previous cycles. This feedback can be retrieved from ion current measurements. By applying a voltage over the spark gap, ions will lead a current and a signal that represents the combustion in the cylinder will be retrieved. Voltages of 450 V were used. The paper describes a new method to enhance the combustion phasing from the Ion current trace in HCCI engines. The method is using the knowledge of how the signal should look. This is known due to the fact that the shape of the ion current signal is similar from cycle to cycle. This new observation is shown in the paper. Also the correlation between the ion current and CA50 was studied. Later the signals have been used for combustion feedback.</p>}}, author = {{Aulin, Hans and Bentioulis, Pascal and Tunestål, Per and Hyvönen, Jari and Johansson, Bengt}}, booktitle = {{Powertrain and Fluid Systems Conference and Exhibition}}, language = {{eng}}, title = {{Improving ion current feedback for HCCI engine control}}, url = {{http://dx.doi.org/10.4271/2007-01-4053}}, doi = {{10.4271/2007-01-4053}}, year = {{2007}}, }