| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system that can improve fuel economy. <P>SOLUTION: The fuel cell system 1 is equipped with a fuel cell 10; an air pump 21, an air supply passage, a hydrogen supply passage, a hydrogen tank, a hydrogen exhausting passage, a hydrogen circulation passage, an air exhausting passage, a purge valve 441, and a control device 30. The control device 30 is equipped with a dilution decision part 31 for deciding whether dilution of hydrogen gas in the hydrogen supply passage, the hydrogen exhausting passage, and the hydrogen circulation passage is completed, when a stop signal of the fuel cell 10 is inputted; an air amount increasing part 33 increasing air flow rate in the air exhausting passage with the air pump, when the dilution decision part 31 decides that dilution is not completed; a power generation amount calculating part 34 for calculating the power generation amount of the fuel cell 10, corresponding to the air flow rate increased with the air amount increasing part 33; and a fuel cell drive part 35 for generating electric power of the fuel cell 10 so that the power reaches the power generation amount, calculated by the power generation amount calculating part 34. <P>COPYRIGHT: (C)2009,JPO&INPIT |
