| 摘要 |
<P>PROBLEM TO BE SOLVED: To process diagnostic signals from a plurality of devices so as to control an operating state of each device in an on-vehicle device. <P>SOLUTION: To an FCECU 10, the diagnostic signals are supplied from a high-voltage converter 12, a battery ECU 14, an FC cell ECU 18 and an HVECU 22. For example, the diagnostic signals regarding a motor are output from the converter 12 and the HVECU 22. When data on both diagnostic signals do not correspond, the FCECU 10 detects an operating state of the converter 12 and that of the HVECU 22 so as to decide whether an operating voltage is a minimum operating voltage or more at each device. The diagnostic signal from the device at the operating voltage lower than the minimum operating voltage is judged to be false so as to be neglected, and the diagnostic signal from the device operated at the minimum operating voltage or more is judged to be true so as to be adopted. <P>COPYRIGHT: (C)2004,JPO |
