METHOD FOR CONTROLLING FUEL CELL SYSTEM
First Claim
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1. A method for controlling a fuel cell system including a fuel cell, comprising:
- generating electric current via an electrochemical reaction between a fuel gas and an oxidant gas by the fuel cell including a solid polymer electrolyte membrane;
detecting an impedance of the fuel cell;
determining whether the impedance reaches a threshold impedance; and
increasing the electric current generated by the fuel cell when the impedance is determined to reach the threshold impedance.
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Abstract
A method for controlling a fuel cell system including a fuel cell, includes generating electric current via an electrochemical reaction between a fuel gas and an oxidant gas by the fuel cell including a solid polymer electrolyte membrane. An impedance of the fuel cell is detected. It is determined whether the impedance reaches a threshold impedance. The electric current generated by the fuel cell is increased when the impedance is determined to reach the threshold impedance.
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Citations
8 Claims
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1. A method for controlling a fuel cell system including a fuel cell, comprising:
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generating electric current via an electrochemical reaction between a fuel gas and an oxidant gas by the fuel cell including a solid polymer electrolyte membrane; detecting an impedance of the fuel cell; determining whether the impedance reaches a threshold impedance; and increasing the electric current generated by the fuel cell when the impedance is determined to reach the threshold impedance. - View Dependent Claims (2, 7, 8)
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3. A method for controlling a fuel cell system including a fuel cell, comprising:
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generating electric current via an electrochemical reaction between a fuel gas and an oxidant gas by the fuel cell including a solid polymer electrolyte membrane; cooling oxidant gas supplied to the fuel cell with a coolant; determining whether a temperature of the coolant reaches a threshold temperature; and increasing the electric current generated by the fuel cell when the temperature of the coolant is determined to reach the threshold temperature. - View Dependent Claims (4)
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5. A method for controlling a fuel cell system including a fuel cell, comprising:
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generating electric current via an electrochemical reaction between a fuel gas and an oxidant gas by the fuel cell including a solid polymer electrolyte membrane; detecting an impedance of the fuel cell; determining whether the impedance reaches a threshold impedance; cooling oxidant gas supplied to the fuel cell with a coolant; determining whether a temperature of the coolant reaches a threshold temperature; and increasing the output electric current generated by the fuel cell when the impedance is determined to reach the threshold impedance or when the temperature of the coolant is determined to reach the threshold temperature. - View Dependent Claims (6)
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Specification