Failure diagnosis controller of pressure sensor

G - Physics – 01 – L

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G01L 27/00 (2006.01) F02D 41/22 (2006.01) G01M 15/00 (2006.01)

Patent

CA 2200237

A failure diagnosis controller of a pressure sensor whereby abnormalities of the pressure sensor can precisely be diagnosed, wrong abnormality diagnoses can be avoided, users' perplexity and confusion on maintenance avoided, users' distrust removed, and unnecessary maintenance eliminated. The invention provides a control means which diagnoses the pressure sensor to be in a failure mode when the intake air temperature is in a state of being measured and the integrated load of the internal combustion engine from its starting time exceeds the criterion of the integrated load.

Détecteur de défaillances du capteur de pression, permettant de diagnostiquer avec précision les anomalies du capteur de pression. Il permet aussi de prévenir les mauvais diagnostics de défaillances, d'éviter la perplexité et la confusion chez les utilisateurs quant à l'entretien, de dissiper leur méfiance, et d'éliminer un entretien non nécessaire. La présente invention rend possible la détection des défaillances du capteur de pression au moment où la mesure de la température de l'air d'admission est sur le point d'être prise, et lorsque la charge intégrée du moteur à combustion interne, depuis l'amorçage, dépasse le critère de charge intégrée.

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