Control device for internal combustion engine
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United States of America Patent
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Aug 27, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jun 28, 2017
filing date -
Jul 5, 2016
priority date (Note) -
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Abstract
A control device is configured to perform, when it is estimated that a combustion fluctuation increases, estimation related to an ignition delay for initial flame generated from a discharge spark and an air-fuel mixture containing fuel spray injected by intake stroke injection. When it is estimated that the ignition delay for the initial flame is increased from that before the increase in the combustion fluctuation, an injection amount in expansion stroke injection is reduced in a next time cycle. When it is estimated that the ignition delay for the initial flame is reduced from that before the increase in the combustion fluctuation, the injection amount in expansion stroke injection is increased in a next time cycle.
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