Induction diagnostics for skip fire engines
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United States of America Patent
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Jun 12, 2018
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N/A
app pub date -
Jan 16, 2018
filing date -
Oct 23, 2014
priority date (Note) -
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Abstract
A variety of methods, diagnostic modules and other arrangements for detecting air induction faults during operation of an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored with the intake pressure being read for each induction opportunity. Induction faults may be detected based at least in part on a comparison of the manifold pressure readings for sequential induction opportunities. In some embodiments, an induction fault is identified when the difference between the manifold pressure associated with an induction opportunity and the immediately preceding induction opportunity exceeds an induction fault threshold.
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