| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of assuring safety at high voltage with a simple structure. <P>SOLUTION: The fuel cell system, equipped with a fuel cell 1 generating electric energy through an electrochemical reaction of oxygen and hydrogen and supplying power to a traveling motor 5, is provided with an electric conductivity sensor 49 detecting electric conductivity of cooling water cooling the fuel cell 1 by passing through inside the fuel cell 1, and a voltage limiting means 50 lowering an upper limit value of voltage supplied to the traveling motor 5 in accordance with an increment of electric conductivity when electric conductivity of the cooling water detected by the electric conductivity sensor 49 becomes a first threshold value or more. <P>COPYRIGHT: (C)2008,JPO&INPIT |
