Fuel cell system and control method of fuel cell system

Details Fuel cell system and control method of fuel cell system Fuel cell system and control method of fuel cell system

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2552705

A fuel cell system is provided which estimates a water content in a fuel cell based on a predetermined map using an integrated value of electric current generated by the fuel cell (ST4) before power generation is stopped (ST5). When a temperature of the fuel cell has fallen lower than a predetermined value (ST7) after the power generation is stopped (ST5), the fuel cell system determines a dry degree in the fuel cell (ST8) and an anode scavenging period (ST9) based on predetermined maps. Scavenging is performed in an anode in the fuel cell for the anode scavenging period (ST10).

Système de piles à combustible qui évalue la teneur en eau d'une pile à combustible au moyen d'un graphique de référence et d'une valeur intégrée du courant électrique produit par la pile (st4) avant l'arrêt de la production d'énergie (st5). Lorsque la température de la pile est inférieure à une valeur prédéterminée (st7) après l'arrêt de la production d'énergie (st5), le système de piles à combustible détermine le degré de sécheresse de la pile (st8) et la durée nécessaire de balayage de l'anode (st9) en fonction de graphiques de référence. Le balayage de l'anode a lieu dans la pile suivant la durée de balayage déterminée (st10).

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