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US 7,093,579 B2Granted
Method and apparatus for adjusting fuel injection timing
AssigneeInternational Engine Intellectual Property Company, LLC
InventorsSteven J. Dickerson, James T. Beaucaire
Life of this patent
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Abstract
A method and apparatus for adjusting fuel injection timing detects (401) a change in the number of fuel injections for a combustion chamber (105). During a timing adjustment period, the timing for fuel injection(s) may be adjusted (405) incrementally, e.g., in a series of steps or increments, and/or based at least in part on the time elapsed since the detected of the change in the number of fuel injections.
Claims20
A method comprising the steps of:
- detecting a change in a number of fuel injections into a combustion chamber of an internal combustion engine;
- determining a timing adjustment period that begins when the change is detected;
- during the timing adjustment period, adjusting fuel injection timing.
A method comprising the steps of:
- detecting a change in a number of fuel injections into a combustion chamber of an internal combustion engine;
- determining a timing adjustment period;
- during the timing adjustment period, adjusting fuel injection timing incrementally based at least in part on time elapsed since the detection.
An apparatus comprising:
- an engine control module arranged and constructed to detect a change from a first number to a second number of fuel injections into a combustion chamber of an internal combustion engine, to determine a timing adjustment period, and to adjust fuel injection timing during the timing adjustment period;
- wherein the engine control module is operable with a fuel injection system capable of providing the first number and the second number of fuel injections into the combustion chamber, wherein the first number and the second number are not the same number.
Dependencies are inferred from the claim text.