Fuel cell system and control method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorsYong Hee Lee, Se Hoon Song
Life of this patent
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Abstract
Fuel cell systems and methods of controlling the fuel cell system are provided, where the fuel cell system includes a fuel cell stack including an anode and a cathode, a nitrogen tank configured to store nitrogen drained from the cathode, and to supply the stored nitrogen to the anode, and a controller configured to control the store and the supply of the nitrogen, based on one or more of a pressure and a filling amount of the nitrogen tank.
Claims12
A fuel cell system comprising:
- a fuel cell stack comprising an anode and a cathode;
- a nitrogen tank configured to store nitrogen drained from the cathode, and to supply the stored nitrogen to the anode;
- and
- a controller configured to control the storing of the nitrogen and the supplying of the nitrogen, based on one or more of a pressure and a filling amount of the nitrogen tank,
- wherein the controller is configured to store the nitrogen into the nitrogen tank based on a preset condition being satisfied,
- wherein the preset condition is varied corresponding to operating state of the fuel cell stack,
- wherein the operating state of the fuel cell stack is a lower-output operating state and a higher-output operating state.
A processor-implemented method of controlling a fuel cell system including a fuel cell stack comprising an anode and a cathode, the method comprising:
- storing nitrogen drained from the cathode in a nitrogen tank, and supplying the stored nitrogen to the anode;
- determining pressure and a filling amount of the nitrogen tank;
- and
- controlling the storing and the supplying of the nitrogen, based on one or more of the pressure and the filling amount of the nitrogen tank,
- wherein the controlling the storing the nitrogen includes storing the nitrogen into the nitrogen tank based on a preset condition being satisfied,
- wherein the preset condition is varied corresponding to operating state of the fuel cell stack,
- wherein the operating state of the fuel cell stack is a lower-output operating state and a higher-output operating state.
Dependencies are inferred from the claim text.