| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of making the humidity of reaction gas supplied to a fuel cell appropriate while reliability and durability are ensured, and to provide the control method of the fuel cell system. <P>SOLUTION: Reaction gas used for the reaction of a fuel cell stack 2 is made to flow in a humidifying passage 3 humidifying reaction gas used for the reaction of a fuel cell stack with moisture in reaction off gas exhausted after reaction, and the flow rate in a bypass passage 6 for making flow reaction gas or reaction off gas exhausted after reaction without humidifying is controlled. Temperature of the fuel cell stack 2 and temperature in the downstream part of the humidifying passage 3 are measured. The flow rate in the bypass passage 6 is set so that temperature in the downstream part of the humidifying passage 3 becomes the prescribed temperature on the basis of the measured temperature of the fuel cell stack. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
