Time-based fuel cell purge method

Details Time-based fuel cell purge method Time-based fuel cell purge method

2005-11-16

2010-12-28

Crepeau, Jonathan (Department: 1725)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for control of operation

C429S432000

Reexamination Certificate

active

07858253

ABSTRACT:
A method of purging a fuel cell is disclosed. The method includes determining a running average current load on the fuel cell, a standard deviation of cell voltages of the fuel cell and/or a maximum change in cell voltage of the fuel cell. The fuel cell is purged if the running average current load exceeds an average current load standard, the standard deviation of cell voltages exceeds a standard deviation threshold value, or the maximum change in cell voltage exceeds a maximum allowed cell voltage change rate.

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