| 摘要 |
<p>PURPOSE: To reduce the number of communication lines by constituting a communication control means in such a way as to communicate first communication information in the case of a specified condition being effected while communicating second communication information for different use from the first communication information in the case of the other condition different from the specified condition being effected. CONSTITUTION: A plurality of control devices a1, a2 mounted on an automobile are connected to each other by a communication line (b), and communication through this communication line (b) is controlled by a communication control means (c). This communication control means (c) communicates first communication information (S2) in the case of a specified condition being effected (S1), whereas communicates second communication information for different use from the first communication information (S4) in the case of the other condition different from the specified condition being effected (S3). The number of communication lines for connecting the control devices a1, a2 to each other can thereby be reduced so as to be able to reduce cost.</p> |
