| 摘要 |
<P>PROBLEM TO BE SOLVED: To make possible transition from stand-by operation shutdown prohibition to stand-by operation shutdown of a fuel cell. <P>SOLUTION: A fuel cell system for a vehicle includes a shut-off valve 6 arranged between a fuel cell 2 and a hydrogen tank 3, a control device 20 adjusting the air pressure of a cathode 2c by controlling an air pump 12 in accordance with the operation state of the fuel cell 2, an ejector 8 adjusting the supply pressure of hydrogen gas to an anode 2b based on the air pressure of the cathode 2c, a stand-by operation shutdown means stopping power generation by determining that the stand-by operation of the fuel cell 2 should be shut down when the power generation demand of the fuel cell 2 is the prescribed value or lower, a stand-by operation shutdown prohibiting means prohibiting the shutdown of the stand-by operation when the gage pressure of the anode 2b is the prescribed value or higher even when the stand-by operation shutdown means determines that the stand-by operation should be shut down, and a first anode pressure decreasing means decreasing the hydrogen gas supply pressure of the anode 2b by continuing the power generation of the fuel cell 2 by closing the shut-off valve 6 when the stand-by operation shutdown prohibiting means prohibits the stand-by operation shutdown. <P>COPYRIGHT: (C)2010,JPO&INPIT |
