Measuring and testing – Simulating operating condition – Marine
Reexamination Certificate
2007-01-23
2007-01-23
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Simulating operating condition
Marine
C073S049700, C073S115060, C073S116070, C073S117020, C073S117020, C073S114220, C073S040000, C073S046000, C073S047000
Reexamination Certificate
active
11099479
ABSTRACT:
After a reference pressure using a reference hole is measured, a pressure in an evaporation path is measured. An ECU conducts failure diagnosis using, as a determination pressure for diagnosing presence/absence of a failure, a value obtained by correcting the reference pressure using the reference hole in a manner lowering the same by a predetermined amount, taking into account pressure lowering in the evaporation path due to condensation of fuel vapor at the time of adsorption in a canister when a vapor concentration in the evaporation path is high.
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Ito Tokiji
Miyahara Hideki
Nagasaki Kenji
Denso Corporation
Jenkins Jermaine
Lefkowitz Edward
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