| 摘要 |
<P>PROBLEM TO BE SOLVED: To control the pressure of oxidant gas being supplied to an oxidant electrode by a simple method even when the ambient atmospheric pressure or the temperature inside a fuel cell are varied. <P>SOLUTION: A relative value calculation part 51 calculates a relative value of the target pressure of air on the inlet side of a cathode 11b and the ambient atmospheric pressure in the fuel cell system detected by an atmospheric pressure sensor 42, and an air pressure control valve opening calculation part 52 calculates the opening of an air pressure control valve 22 necessary for realizing the target pressure of air on the inlet side of the cathode 11b with the flow rate of air being supplied to the cathode 11b detected with a flow rate sensor 45 and a relative value calculated with the relative value calculating part 51. An air pressure control valve command correction calculation part 54 corrects the opening calculated with the air pressure control valve opening calculation part 52 according to the temperature of air on the outlet side of the cathode 11b detected by a temperature sensor 46c and the ambient atmospheric pressure of the fuel cell system detected by the atmospheric pressure sensor 42. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
