| CPC H01M 8/04522 (2013.01) [H01M 8/04111 (2013.01); H01M 8/04134 (2013.01); H01M 8/04559 (2013.01); H01M 8/04708 (2013.01); H01M 8/04753 (2013.01)] | 20 Claims |
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1. A system for detecting a humidity level at a cathode of a fuel cell stack including one or more proton exchange membrane fuel cells and determining a flooding probability of the fuel cell stack based on the humidity level, the system comprising:
a fuel cell stack including a plurality of proton exchange membrane fuel cells, each proton exchange membrane fuel cell including an exhaust;
a voltage detector;
a humidity detector; and
a controller configured to:
receive a voltage as measured at an anode of one or more of the proton exchange membrane fuel cells with the voltage detector;
determine a humidity level at the exhaust of the one or more of the proton exchange membrane fuel cells; and
implement one or more actions based on the voltage and the humidity level, the actions including:
reduce a load on the proton exchange membrane fuel cell;
increase an air flow at a cathode of the one or more proton exchange membrane fuel cells;
decrease an inlet humidity at an inlet to the one or more proton exchange membrane fuel cells; or
increase a temperature of the one or more proton exchange membrane fuel cells.
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