| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information device which can inform a user appropriately of an operable time of an apparatus, a refilling time of fuel, a replacement time of a fuel cartridge, etc. <P>SOLUTION: The information device stores data representing relation between the consumption of fuel depending on the operation status and/or operation environment of a fuel reformer or a fuel cell and the amount of current generated by the fuel cell, and calculates, for example, an operable time of the apparatus based on the data, so that fuel can be resupplied or a fuel cartridge can be replaced with a new one at an appropriate time. The device can also display selectively a remaining amount of the fuel tank or the fuel cartridge, a remaining capacity of an auxiliary battery, or an operable time of the apparatus, or can display all of those items simultaneously. <P>COPYRIGHT: (C)2008,JPO&INPIT |
