Patent ID: 6067302
Filing Date: 2000-05-23
Classification: B60R

Abstract:
A vehicle multiplex communication apparatus comprising:a common bus line provided in a vehicle;a plurality of central control units connected to said common bus line, each of said central control units transmitting information to and from said common bus line in accordance with a first information protocol;at least one of said central control units comprising a first switch element having a plurality of switches; andan information collection control unit comprising a second switch element having a plurality of switches and connected with at least one of said central control units through a second bus line;said information collection control unit transmitting control information in the form of coded data, said control information being transmitted in one way communication from said second switch element to said central control units and in accordance with a second information protocol different from the first information protocol, said central control unit transmitting control information from said first switch element and said second switch element in accordance with said first information protocol to other central control units, said second information protocol being simpler than said first information protocol.