Method for operating a fuel cell system as well as a fuel cell system and a motor vehicle with a fuel cell system

摘要

The invention relates to a method for operating a fuel cell system (1), comprising the steps of: Establishing the presence of constant power operation, in which the fluctuation in the power output is less than a predeterminable first threshold value for a period of time greater than a predeterminable second threshold value is, • continuous or clocked measurement of the cell voltage and comparison of the cell voltage at the beginning of the period with the current cell voltage and Voltage drop when the third threshold value is exceeded. The invention also relates to a fuel cell system (1) and a motor vehicle with a fuel cell system (!).