Fuel cell system having a valve device controlled by a...

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) B60L 11/18 (2006.01) H01M 8/00 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2593149

A fuel cell system (10) of the present invention has a fuel cell (20) which generates electric power by being supplied with reactive gas, an air compressor (C1) which supplies oxidizing gas to the fuel cell (20), a pressure sensor (P2) which detects the pressure of oxidizing gas, a pressure control valve (C2) which adjusts the pressure of oxidizing gas, and a control device (50) which adjusts the valve opening of the pressure control valve (C2) on the basis of the pressure detected by the pressure sensor (P2). When an abnormality in the pressure sensor (P2) is detected, the control device (50) opens the pressure control valve (C2) so that the valve opening thereof is equal to or larger than a predetermined opening. This arrangement ensures that the cell operation can be continued for a while instead of being immediately stopped in the event of abnormality in the pressure sensor (P2).

Un système de pile à combustible (10) est doté d'une pile à combustible (20) qui génère de la puissance lorsqu'il est alimenté en gaz réactif ; un compresseur d'air (C1) pour alimenter la pile à combustible (20) en gaz oxydant ; un capteur de pression (P2) conçu pour détecter la pression du gaz oxydant ; une soupape de régulation de pression (C2) pour régler la pression du gaz oxydant ; et un organe de commande (50) pour régler le degré d'ouverture de la soupape de régulation de pression (C2) en fonction de la pression détectée par le capteur de pression (P2). Lorsque l'organe de commande (50) détecte un anomalie du capteur de pression (P2), la soupape de régulation de pression (C2) est ouverte selon un degré d'ouverture prescrit ou plus. Ainsi, lorsqu'une anomalie est générée dans le capteur de pression (P2), la pile ne s'arrête pas immédiatement et peut continuer à fonctionner pendant un moment.

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