| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a backup system of an electronic control unit capable of coping with not only defects of LAN, but also defects of CPU of ECU. <P>SOLUTION: This backup system 10 of an electronic control unit of an automobile comprises a plurality of electronic control units (ECU). Each of the ECUs 20A-20C comprises a first CPU 21 for a normal operation, and a second CPU for backup. The first CPU 21 and the second CPU 22 are connected in parallel with a predetermined major load 50 and a major switch 51 for operating the major load 50. The first CPUs 21 installed to the electronic control units 20A-20C are connected with each other by a high-speed LAN 30, and the second CPUs 22 are connected with a low-speed LAN 40. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
