Method of compensating for injector aging
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United States of America Patent
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Aug 16, 2016
Grant Date -
Mar 6, 2014
app pub date -
Apr 29, 2011
filing date -
Apr 29, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.
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