| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a program rewriting system capable of improving communication efficiency when rewriting a program of a program-rewriting target controller via an on-vehicle network. <P>SOLUTION: When a non-reprogramming target ECU 10b judges that it is not the target ECU although an instruction of starting to rewrite a program is received, communication via a communication line 12 is stopped by a communication control section 101a. Furthermore, when a reprogramming-inhibited ECU 10c receives the instruction of starting to rewrite a program, the communication via the communication line 12 is stopped by the communication control section 101c. Thereby, a reprogramming device 11 establishes the communication via the communication line 12 with only a reprogramming target ECU 10a, so that the rewriting of a program can be carried out improving the communication efficiency. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
