Abnormality detection apparatus and method for oil level sensor

An abnormality detection apparatus for detecting an abnormality of an oil level sensor having lower and upper oil level detectors includes: recording means for recording an output of the upper oil level detector before the internal combustion engine is started; and determining means for determining...

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Bibliographische Detailangaben
Hauptverfasser:	YOKOI, TATSUHISA, KUSUNOKI, RYOUHEI, KITAOKA, RYOICHI, HARADA, YASUO, HORIKAWA, HIDETOMO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CRANKCASE VENTILATING ENGINE PLANTS IN GENERAL HEATING LIGHTING LUBRICATING INTERNAL COMBUSTION ENGINES LUBRICATING OF MACHINES OR ENGINES IN GENERAL MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	An abnormality detection apparatus for detecting an abnormality of an oil level sensor having lower and upper oil level detectors includes: recording means for recording an output of the upper oil level detector before the internal combustion engine is started; and determining means for determining that the upper oil level detector has an abnormality if the output of the lower oil level detector is indicating, after the start of the internal combustion engine, that the oil level is higher than the first reference oil level while the output of the upper oil level detector recorded by the recording means is indicating that the oil level was lower than the second reference oil level before the start of the internal combustion engine.