Topic
Spark-ignition engine
About: Spark-ignition engine is a research topic. Over the lifetime, 4352 publications have been published within this topic receiving 66550 citations.
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38 citations
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04 Jul 2002
TL;DR: In this article, a control system for a direct-injection spark-ignition internal combustion engine is presented, which includes a first control section for switchably controlling a combustion mode between a homogeneous combustion mode and a stratified stoichiometric combustion mode.
Abstract: A control system for a direct-injection spark-ignition internal combustion engine is provided which includes a first control section for switchably controlling a combustion mode between a homogeneous combustion mode and a stratified stoichiometric combustion mode, and a second control section for advancing, at a time of switching from the homogeneous combustion mode to the stratified stoichiometric combustion mode, an ignition timing by an amount for offsetting a variation of torque simultaneously with switching of the combustion mode, gradually retarding the ignition timing after the switching of the combustion mode, and after the ignition timing has retarded a predetermined amount, retarding a compression stroke fuel injection timing in the stratified combustion mode while retarding the ignition timing further. A control method is also provided.
38 citations
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TL;DR: In this article, the influence of compression ratio and 15% hydrogen substitution on energy basis at the optimal compression ratio of 10.5:1 on performance, emission and combustion behavior were studied and compared.
38 citations
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TL;DR: In this paper, a single cylinder spark ignition (SI) engine was selected in order to study the effect of compressed natural gas (CNG) into the spark ignition engine and the results showed that pressure inside cylinder for CNG is 20% less than gasoline.
38 citations
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TL;DR: In this paper, the effects of gasoline-ethanol and gasoline-butanol blends on the combustion, fuel economy and engine-out emissions of a single cylinder research engine equipped with a mechanical variable valvetrain on the inlet and variable valve timing on the exhaust.
38 citations