| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a switching state determination system of a cutoff valve and a switching state determination method of the cutoff valve, capable of surely and easily determining the switching state of the cutoff valve. <P>SOLUTION: This switching state determination system S1 is provided with a fuel gas supply piping 10 for making a hydrogen tank 5 and a fuel cell 6 communicate with each other; the cutoff valve 21 and a decompression valve 22 installed sequentially on the supply piping 10 from the hydrogen tank 5 toward the fuel cell 6; pressure sensors 41 and 42 for detecting pressure of the hydrogen gas of fuel gas supply parts 31 and 32 divided by the decompression valve 22 between the cutoff valve 21 and the fuel cell 6; an ammeter 53 and a voltmeter 54 for detecting the amount of power generated by the fuel cell 6; and a cutoff valve switching state determination means 70 for determining the switching state of the cutoff valve 21, based on the pressure of the hydrogen gas and the power generation amount; and is characterized by that the determination means 70 is equipped with a hydrogen gas consumption calculation part 72, a volume data storage part 73, a hydrogen gas supply volume calculating part 74, and a cutoff valve switching state determining part 75. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
