Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Small engines for non-automotive applications include 2-stroke and 4-stroke gasoline engine concepts which have a reduced number of sensors due to cost and packaging constraints. In order to cope with future emission regulations, more sophisticated engine control and monitoring becomes mandatory. Therefore, a cost-effective way has to be found to gain maximum information from the existing sensors and actuators. Due to an increasing bio-fuel share in the market, the detection of bio-fuel content is necessary to guarantee a stable combustion by adapting the injection and ignition control strategy.Meaningful information about the combustion can be retrieved from combustion chamber ion current measurements. This paper proposes a general overview of combustion process monitoring in different engine concepts by measuring the ion current during combustion. Actually, the ion current measurement technique is not yet established in the automotive sector due to the presence of other more accurate and less signal analysis intense sensors as the oxygen and knock sensor. But in small non-automotive applications the ion current could be beneficial for a dynamic control of the engine, due to its cost-efficient measurement hardware solution.During the research both two- and four-stroke engines are tested in different operating points and fuel blends resulting in a wide general knowledge of the measuring principle and signal properties. Furthermore, a correlation study between signal properties and engine parameters is given in order to extract a stable control variable suitable for the computational power of such engine ECUs.
Original languageEnglish
Title of host publicationSAE/JSAE Small Engine Technology Conference
PublisherSAE International
Number of pages10
Publication statusPublished - 1 Oct 2018
Event2018 Small Engine Technology Conference & Exhibition - Düsseldorf, Germany
Duration: 6 Nov 20188 Nov 2018

Conference

Conference2018 Small Engine Technology Conference & Exhibition
Abbreviated title SAE/JSAE Small Engine Technology Conference
CountryGermany
CityDüsseldorf
Period6/11/188/11/18

Fingerprint

Gasoline
Engines
Ions
Sensors
Electric current measurement
Costs
Process monitoring
Signal analysis
Combustion chambers
Ignition
Packaging
Actuators
Hardware
Oxygen
Monitoring

Cite this

Basso, R., Gruber, G., Piecha, P., Schacht, H-J., Schmidt, S., & Arenz, M. (2018). Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications. In SAE/JSAE Small Engine Technology Conference SAE International.

Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications. / Basso, Riccardo; Gruber, Gabriel; Piecha, Pascal; Schacht, Hans-Juergen; Schmidt, Stephan; Arenz, Martin.

SAE/JSAE Small Engine Technology Conference. SAE International, 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Basso, R, Gruber, G, Piecha, P, Schacht, H-J, Schmidt, S & Arenz, M 2018, Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications. in SAE/JSAE Small Engine Technology Conference. SAE International, 2018 Small Engine Technology Conference & Exhibition, Düsseldorf, Germany, 6/11/18.
Basso R, Gruber G, Piecha P, Schacht H-J, Schmidt S, Arenz M. Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications. In SAE/JSAE Small Engine Technology Conference. SAE International. 2018
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abstract = "Small engines for non-automotive applications include 2-stroke and 4-stroke gasoline engine concepts which have a reduced number of sensors due to cost and packaging constraints. In order to cope with future emission regulations, more sophisticated engine control and monitoring becomes mandatory. Therefore, a cost-effective way has to be found to gain maximum information from the existing sensors and actuators. Due to an increasing bio-fuel share in the market, the detection of bio-fuel content is necessary to guarantee a stable combustion by adapting the injection and ignition control strategy.Meaningful information about the combustion can be retrieved from combustion chamber ion current measurements. This paper proposes a general overview of combustion process monitoring in different engine concepts by measuring the ion current during combustion. Actually, the ion current measurement technique is not yet established in the automotive sector due to the presence of other more accurate and less signal analysis intense sensors as the oxygen and knock sensor. But in small non-automotive applications the ion current could be beneficial for a dynamic control of the engine, due to its cost-efficient measurement hardware solution.During the research both two- and four-stroke engines are tested in different operating points and fuel blends resulting in a wide general knowledge of the measuring principle and signal properties. Furthermore, a correlation study between signal properties and engine parameters is given in order to extract a stable control variable suitable for the computational power of such engine ECUs.",
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AB - Small engines for non-automotive applications include 2-stroke and 4-stroke gasoline engine concepts which have a reduced number of sensors due to cost and packaging constraints. In order to cope with future emission regulations, more sophisticated engine control and monitoring becomes mandatory. Therefore, a cost-effective way has to be found to gain maximum information from the existing sensors and actuators. Due to an increasing bio-fuel share in the market, the detection of bio-fuel content is necessary to guarantee a stable combustion by adapting the injection and ignition control strategy.Meaningful information about the combustion can be retrieved from combustion chamber ion current measurements. This paper proposes a general overview of combustion process monitoring in different engine concepts by measuring the ion current during combustion. Actually, the ion current measurement technique is not yet established in the automotive sector due to the presence of other more accurate and less signal analysis intense sensors as the oxygen and knock sensor. But in small non-automotive applications the ion current could be beneficial for a dynamic control of the engine, due to its cost-efficient measurement hardware solution.During the research both two- and four-stroke engines are tested in different operating points and fuel blends resulting in a wide general knowledge of the measuring principle and signal properties. Furthermore, a correlation study between signal properties and engine parameters is given in order to extract a stable control variable suitable for the computational power of such engine ECUs.

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