Patent ID: 9263751
Filing Date: 2016-02-16
CPC Classification: H01M,Y02B,Y02E

Claim Text:
1. A method for operating a fuel cell system, the method comprising the steps of: (a) providing a fuel cell stack having a plurality of anode injectors in fluid communication with an anode inlet of the fuel cell stack and a control system in electrical communication with the fuel cell stack and the anode injectors; (b) determining if an anode injector has failed in an open state using the control system to monitor for a pressure at predetermined points in the fuel cell stack; (c) enabling the fuel cell stack to continue operation if an anode injector has failed in an open state using the control system to open a vent valve disposed downstream from an anode outlet of the fuel cell stack to decrease a pressure in the fuel cell stack, wherein opening of the vent valve exposes the anode outlet of the fuel cell stack to a pressure in a cathode exhaust; (d) increasing a flow of air to a cathode side of the fuel cell stack by increasing a speed of a compressor relative to a speed of the compressor immediately prior to the determining that an anode injector has failed in an open state.