| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform high-speed data communication without being affected by noise superimposed on a signal line at a vehicle communication apparatus that performs data communication via a signal line such as a power line. <P>SOLUTION: A communication apparatus for a vehicle, which constitutes a PLC system comprises a PLC communication section 40 capable of switching a communication scheme to an OFDM scheme and an SS scheme. In particular, a PLC master unit 10 comprises a LAN communication section 32 for performing data communication with a control device such as an engine control ECU via an intra-vehicle LAN. At the PLC master unit 10, a microcomputer 30 acquires operational states of respective parts of the vehicle from various control devices via the LAN communication section 32, sets a communication scheme at the PLC communication section 40 or a sub carrier inhibiting use when the communication scheme is the OFDM scheme, so as to perform data communication without being affected by noise generated at each part of the vehicle while using the acquired operational states and control information stored beforehand, and notifies a PLC slave unit about the set communication scheme. <P>COPYRIGHT: (C)2009,JPO&INPIT |
