Control device of spark-ignition gasoline engine
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United States of America Patent
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Apr 22, 2014
Grant Date -
Aug 30, 2012
app pub date -
Feb 7, 2012
filing date -
Feb 24, 2011
priority date (Note) -
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Abstract
The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller controls a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection valve to perform a fuel injection at least at a timing that is more retarded than an injection timing of a fuel within the low engine load range and is within a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing within the retard period and further after the fuel injection.
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