Fuel injection control system
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United States of America Patent
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Apr 21, 2009
Grant Date -
Jan 24, 2008
app pub date -
Jul 17, 2007
filing date -
Jul 21, 2006
priority date (Note) -
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Abstract
An apparatus aims at learning a deviation from a reference injection characteristic of a fuel injector provided for a cylinder of an engine having an output shaft. In the apparatus, a detecting unit is configured to detect a minimum interval between temporally adjacent fuel injection periods in the plurality of fuel injection periods based on a behavior of the output shaft during execution of the plurality of fuel injections. The minimum interval maintains the temporally adjacent fuel injection periods to be non-overlapped with each other. A learning unit is configured to learn the deviation from the reference injection characteristic of the fuel injector based on the detected minimum interval.
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