Control apparatus for internal combustion engine
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United States of America Patent
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Dec 16, 2014
Grant Date -
Nov 21, 2013
app pub date -
Feb 2, 2011
filing date -
Feb 2, 2011
priority date (Note) -
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Abstract
An object of this invention is to provide a control apparatus for an internal combustion engine which makes it possible to reliably avoid an abnormal increase in in-cylinder pressure due to pre-ignition. The control apparatus of this invention controls an internal combustion engine including an injector that directly injects fuel into a cylinder. The control apparatus includes pre-ignition detection means that executes an operation to detect pre-ignition until a time of a crank angle θA, and injection instruction means that, at a time of a crank angle θB that is before the crank angle θA, sends to the injector an injection instruction to perform fuel injection that suppresses pre-ignition combustion. Preferably, the control apparatus includes energization stopping means that, when the pre-ignition detection means does not detect pre-ignition until the time of the crank angle θA, stops energization of the injector that is started by the injection instruction.
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