プラグアンドプレイによる CAN 接続のためのノードテーブルの分散管理

抄録

An automobile is equipped with many Electronic Control Unit (ECU) to which various sensors are connected, and advanced control is achieved by exchanging information among the ECUs using the CAN communication protocol. However, as increase of nodes, costs for designing, constructing, testing and managing such systems increase. For these problems, we make an attempt at achievement of plug and play scheme in which nodes are automatically connected to CAN, aiming at cost reduction of each process. We have proposed a framework of plug and play connection and a dynamic unique ID assignment method as a first step. In this research, we propose communication protocol among ECUs to keep consistency of node tables when an ECU is connected to or removed from CAN.