| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a humidification control technique capable of appropriately controlling the humidification amount of supply gas. <P>SOLUTION: An always constant humidifying molar ratio is achieved regardless of the load variation of a fuel cell 140, by estimating excess responsiveness of the humidification amount and adjusting a bypass valve 160. An ECU 150 detects the load variations in the fuel cell 140, based on a current value detected by a current sensor 20 and finds the target humidifying amount, by referring to a map (not illustrated) comparing the current value to the humidifying amount of oxidizing gas. The ECU 150 conducts estimated control of the bypass valve 160, by estimating the excess responsiveness of the humidification so as to obtain the target humidifying amount. <P>COPYRIGHT: (C)2007,JPO&INPIT |
