| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication data diagnostic device which can diagnose communication data and states of communication lines when a communication abnormality occurs in a communication system in which the same data is transmitted through communication lines of two systems. SOLUTION: A communication frame 100 communicated by a FlexRay network includes: a payload segment part 250 being an area indicating contents of data; and a CRC part 260 being an area of check code data of the payload segment part 250, and each of an ECCS controller (node 1) and a BCM controller 10 (node 10) includes a FlexRay reception redundancy determination part 191 which communicates with a CRC part 511 for diagnosing data by a CAN network when performing communication by the FlexRay network and diagnoses data of the FlexRay network. COPYRIGHT: (C)2009,JPO&INPIT
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