基于CAN总线的汽车电子模拟通信平台设计

• 作 者: 边文超 于兵 邱旭云
• 机 构: 南京航空航天大学能源与动力学院,山东交通学院汽车工程学院,
• 出 处: 伺服控制
• 发表日期: 2013年03期
• 关键词: 总线技术 CAN总线 电子模拟 模拟平台 层次化设计 执行机构 设计原理 通信平台 总线驱动器 发动机模型

为了探究CAN总线层次化设计,本文设计了不同处理器间CAN总线汽车电子模拟通信平台。模拟平台采用32位处理器作为汽车ECU,接收并处理底层处理器发送的信号和向底层处理器发送指令;采用16位处理器检测并控制发动机,在处理器的Flash中含有发动机模型程序;采用8位处理器检测并控制车身底盘上的传感器和执行机构。三者之间的采用CAN总线通信。试验表明,三者之间连线简单、通信错误率低、实时性高,达到了系统设计的要求。

In order to explore the CAN bus hierarchical design, this paper designed a CAN bus between different processor automotive electronic analog communication platform. The simulation platform uses a 32-bit processor as a vehicle ECU, receives and processes signals sent by the underlying processor and sends instructions to the underlying processor, detects and controls the engine with a 16-bit processor, and includes an engine model program in the processor’s Flash. The 8-bit processor detects and controls the sensors and actuators on the chassis. The use of CAN bus communication between the three. Experiments show that the connection between the three is simple, the communication error rate is low, and the real-time performance is high, which meets the requirements of system design.