直流充电站系统CAN总线通信协议的制定与实现

摘要

以CAN(Controller Area Network)2.0B为标准，对CAN总线应用层进行开发，制定出符合直流充电站系统CAN总线通信协议，并通过CAN控制器的验收滤波功能，灵活地实现了点对点、一点对多点以及广播通信.直流充电站系统实际运行结果表明，制定的协议能够有效地保证数据传输的可靠性和实时性.%　　With CAN (controller area network) 2.0B as standard, the CAN bus application layer was developed to formulate communica-tion protocol of CAN bus in conformity to DC charging station system. Via acceptance filtering function of CAN controller, the communi-cations of point to point, one point to multiple points, and broadcasting were realized flexibly. The actual operation result of DC charging station system shows that formulating the protocol can effectively assure reliability and real-time feature for data transmission.