VEHICLE COMMUNICATION SYSTEM

摘要

A delay in the timing at which a message is generated and transmitted is prevented when a relay connection unit generates and transmits a new message on the basis of messages received from an ECU. A vehicle communication system is characterized in that the vehicle communication system comprises a relay connection unit for relaying one or more buses connected to a message transmitter and a bus connected to a message receiver, wherein the relay connection unit generates new messages on the basis of a plurality of messages received from the message transmitter and transmits the generated messages to the message receiver via the bus, and wherein the number of new messages to be generated is not less than 1, a plurality of the new messages allow the messages for generating each of the messages to be divided into groups, and the plurality of messages which the relay connection unit receives from the message transmitter to generate one new message gradually advance the transmission timing.