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AssigneeHonda Motor Co., Ltd.
InventorsToru Sekiguchi, Takashi Konomoto, Toshifumi Yoshida
Estimating the term…
An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit accumulates a value calculated from a rotation second-order component of a fluctuation waveform of the intake flow rate over a predetermined period of time and determines the abnormality of the breather line when the accumulated value is less than a predetermined threshold.
An abnormality determination apparatus for an internal combustion engine in which a crankcase and an intake passage upstream of a forced-induction system are connected by a breather line, comprising:
An abnormality determination method of an internal combustion engine in which a crankcase and an intake passage upstream of a forced-induction system are connected by a breather line, the method comprising steps of:
Dependencies are inferred from the claim text.