Fuel cell purging method
AssigneeHyundai Motor Company
InventorsHyun Jae Lee, Jong Hyun Lee, Deuk Kuen Ahn, Yei Sik Jeon
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Abstract
A fuel cell purging method is provided to effectively prevent fuel cell deterioration and degradation of durability of the fuel cell by performing hydrogen purging at a point in time at which negative pressure of an anode peaks after a fuel cell vehicle is stopped. The fuel cell purging method includes stopping the driving of a fuel cell vehicle and continuously measuring pressure of an anode of a fuel cell after the fuel cell vehicle is stopped. Additionally, hydrogen is supplied to the anode when the measured pressure of the anode reaches a negative pressure peak time point.
Claims5
A fuel cell purging method, comprising:
- stopping, by a controller, driving of a fuel cell vehicle;
- shutting down, by the controller, a fuel cell of the fuel cell vehicle after the fuel cell vehicle is stopped;
- measuring, by the controller, pressure of an anode of the fuel cell after the fuel cell is shut down;
- and
- supplying, by the controller, hydrogen to the anode when the pressure of the anode reaches a negative pressure peak time point so that the pressure of the anode is increased from a negative pressure to a positive pressure while the fuel cell is shut down.
Dependencies are inferred from the claim text.