Method of monitoring a fuel cell unit

Details Method of monitoring a fuel cell unit Method of monitoring a fuel cell unit

2006-10-17

2006-10-17

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S058000, C702S059000, C702S060000, C702S061000

Reexamination Certificate

active

07124040

ABSTRACT:
In a method of monitoring a fuel cell unit, at least one pair of measured values, including a measured current value and a measured voltage value (Iactual, Uactual) are determined at the outputs of the fuel cell unit. The measured voltage value (Uactual) is compared with a limit value (PG), which is a function of the measured current value (Iactual) by way of a limit characteristic polarization curve. It is concluded that the condition of the fuel cell unit is faulty when the measured voltage value (Uactual) or a function of the measured voltage value is smaller than or equal to a predefined threshold value.

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