Secondary system and method for controlling an engine
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United States of America Patent
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May 14, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jul 21, 2016
filing date -
Jul 21, 2016
priority date (Note) -
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Abstract
Systems and methods for evaluating whether or not degradation of an engine air intake air filter is present based on a pressure drop across the air filter are presented. In one example, a mean and standard deviation of a pressure drop across an air filter are a basis for indicating whether or not the air filter is degraded. Further, the mean and standard deviation are a basis for estimating a useful life cycle of the air filter.
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