| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication management device of an on-vehicle network enabling stable communication of the on-vehicle network while suppressing a cost increase. <P>SOLUTION: In the on-vehicle network 1 formed by connecting a plurality of ECUs 2, 4, 6, 8, 10, 12, 14 provided in a vehicle by CANs 20, 22, the transmission period of a periodical frame transmitted to the CANs is detected (S1), the standard deviation of the transmission period is calculated (S2), and data communication management for reducing data traffic is performed (S5) when the transmission period of the periodical frame from the ECU having the first priority is not less than a prescribed value 3σin the standard deviation (S3). <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
