| 摘要 |
<P>PROBLEM TO BE SOLVED: To more reliably write and store data to a nonvolatile memory or rewrite data in the nonvolatile memory upon generation of information to be newly stored or changed information. <P>SOLUTION: An ECU 2 includes: a storage vehicle information existence decision unit 6 for deciding storage vehicle information output from a storage vehicle information output unit 3 to output the storage vehicle information while deciding that an ignition key switch is turned on the basis of on/off information on an ignition key switch output from an ignition key switch on/off information output unit 4; a comparison unit 7 for output of the storage vehicle information when deciding by comparison that the storage vehicle information output from the storage vehicle information existence decision unit 6 is different from vehicle information stored in an EEPROM 5; and a write signal output unit 8 for output of a write signal on the basis of the storage vehicle information output from the comparison unit 7 to store the storage vehicle information in the EEPROM 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
