| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve assurance of high reliability and lower cost by making data sent out to a communication line lighter and thereby reducing the number of buffers provided on a control unit. <P>SOLUTION: An on-vehicle communication system connects each ECU 21-24 to a communication line 25 arranged in an automobile vehicle. A T-CU23 directly receives T-CU cooperation data from a C-CU21 at next control period when the C-CU21 operates and receives a cruise control data from an EG-CU22 in system initial state of the on-vehicle communication system 12 (the automobile vehicle). Accordingly, it is not necessary to provide on the T-CU23 a receiver buffer storing vehicle specification data showing to have the C-CU21. Thereby, the number of receiver buffers which are provided on the T-CU23 can be reduced by making the data sent out to the communication line 25 lighter and as a result, the assurance of the high reliability and cost reduction of the on-vehicle communication system 12 can be achieved. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
