Abstract
It is important to develop the technique for measuring the cycle-to-cycle variation of combustion in order to reduce the fuel consumption of the commercial spark ignition engine. In previous study, we had proposed using the spark plug as an ion probe to measure the appearance time of maximum pressure under the lean mixture conditions of the research engine. In this paper the combustion diagnostics for the commercial engine was performed using the spark plug as an ion probe. Under idling conditions the ion current often appeared during the exhaust process. This ion current is dominated by the flame contact area and the flame velocity. In this case there is good correlation between the characteristic value of the ion current and the indicated mean effective pressure (IMEP). Finally using the spark plug as an ion probe can detect the combustion quality under conditions with large cyclic variation.
| Original language | English |
|---|---|
| Journal | SAE Technical Papers |
| DOIs | |
| Publication status | Published - Jan 1 2002 |
| Event | Powertrain and Fluid Systems Conference and Exhibition - San Diego, CA, United States Duration: Oct 21 2002 → Oct 24 2002 |
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ASJC Scopus subject areas
- Automotive Engineering
- Safety, Risk, Reliability and Quality
- Pollution
- Industrial and Manufacturing Engineering
Cite this
Combustion diagnostics of a spark ignition engine using a spark plug as an ion probe. / Yoshiyama, Sadami; Tomita, Eiji.
In: SAE Technical Papers, 01.01.2002.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Combustion diagnostics of a spark ignition engine using a spark plug as an ion probe
AU - Yoshiyama, Sadami
AU - Tomita, Eiji
PY - 2002/1/1
Y1 - 2002/1/1
N2 - It is important to develop the technique for measuring the cycle-to-cycle variation of combustion in order to reduce the fuel consumption of the commercial spark ignition engine. In previous study, we had proposed using the spark plug as an ion probe to measure the appearance time of maximum pressure under the lean mixture conditions of the research engine. In this paper the combustion diagnostics for the commercial engine was performed using the spark plug as an ion probe. Under idling conditions the ion current often appeared during the exhaust process. This ion current is dominated by the flame contact area and the flame velocity. In this case there is good correlation between the characteristic value of the ion current and the indicated mean effective pressure (IMEP). Finally using the spark plug as an ion probe can detect the combustion quality under conditions with large cyclic variation.
AB - It is important to develop the technique for measuring the cycle-to-cycle variation of combustion in order to reduce the fuel consumption of the commercial spark ignition engine. In previous study, we had proposed using the spark plug as an ion probe to measure the appearance time of maximum pressure under the lean mixture conditions of the research engine. In this paper the combustion diagnostics for the commercial engine was performed using the spark plug as an ion probe. Under idling conditions the ion current often appeared during the exhaust process. This ion current is dominated by the flame contact area and the flame velocity. In this case there is good correlation between the characteristic value of the ion current and the indicated mean effective pressure (IMEP). Finally using the spark plug as an ion probe can detect the combustion quality under conditions with large cyclic variation.
UR - http://www.scopus.com/inward/record.url?scp=85072447891&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072447891&partnerID=8YFLogxK
U2 - 10.4271/2002-01-2838
DO - 10.4271/2002-01-2838
M3 - Conference article
AN - SCOPUS:85072447891
JO - SAE Technical Papers
JF - SAE Technical Papers
SN - 0148-7191
ER -