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随着汽车电子技术的不断发展,汽车上各种电子控制单元的数目不断增加,连接导线显著增加,因而提高控制单元间通讯可靠性和降低导线成本已成为迫切需要解决的问题。CAN总线是一种串行多主站控制器局域网总线,是一种有效支持分布式控制或实时控制的串性通讯网络。由于其通信速率高,可靠性好以及价格低廉等特点,使其特别适合中小规模的工业过程监控设备的互连和交通运载工具电气系统中。
With the continuous development of automotive electronic technology, the number of electronic control units in automobiles has been increasing and the number of connecting wires has increased significantly. Therefore, it has become an urgent issue to improve the communication reliability between control units and reduce the cost of wires. The CAN bus is a serial multi-master controller LAN bus that is a serial communication network that effectively supports distributed control or real-time control. Due to its high communication speed, good reliability and low price, it is especially suitable for the interconnection of small and medium-sized industrial process monitoring equipment and the electrical system of transportation vehicles.