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AssigneeRobert Bosch GmbH
InventorsSimon Buehler, Saskia Bostelmann, Tobias Falkenau
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The invention relates to a method for operating a fuel cell system (1) comprising a fuel cell stack (2) having a cathode (3) and an anode (4), wherein air is supplied to the cathode (3) via a supply air path (5), and exhaust air exiting the fuel cell stack (2) is discharged via an exhaust air path (6), and wherein the anode (4) is supplied with hydrogen via an anode circuit (7). According to the invention, when the fuel cell system (1) is switched off, the cathode (3) is shut off and the oxygen concentration of the air in the cathode (3) is minimized, and, when the system is subsequently restarted and the cathode (3) remains shut off, the following steps are then carried out: a) the anode (4) is flushed with hydrogen, b) at least one cell voltage and/or the total voltage of the fuel cell stack (2) is or are measured and used to detect a leakage point. The invention also relates to a control device for carrying out steps of a method according to the invention.
A method for operating a fuel cell system (1) comprising a fuel cell stack (2) having a cathode (3) and an anode (4), wherein air is supplied to the cathode (3) via a supply air path (5), and exhaust air exiting the fuel cell stack (2) is discharged via an exhaust air path (6), and wherein the anode (4) is supplied with hydrogen via an anode circuit (7),
Dependencies are inferred from the claim text.