基于CAN/LIN双总线电动汽车数字仪表系统的设计

研究汽车数字化仪表技术。针对传统组合仪表的显示内容具有很大的局限性,且数据传输实时性差等问题,提出了一种基于CAN/LIN双总线纯电动汽车液晶实时显示系统,对系统网络分层架构和系统整体的硬件平台架构进行详细的分析设计。系统软件方面,对信息交换协议以及系统整体的流程进行了设计。经过实验室模拟环境和实际的装车运行测试,系统显示内容丰富、人机交互效果好,实时性强,从而验证了系统设计的合理性和正确性。

A design of electric vehicle digital instrument system based on CAN/LIN dual bus

For the traditional combination instrument, automotive digital instrument technology has limitations in terms of contents display and real time data transmission. Thus we design a pure electric automotive digital instrument system based on CAN/LIN dual bus, and conduct an in depth analysis on the system network layered architecture and on the overall system hardware architecture platform. As for the system software, we develop an information exchange protocol and the system overall flow in detail. Both the test in laboratory simulation environment and actual vehicle installation running test show that the system is rich in display content, has good human computer interaction effect and strong real time performance, thus verifying the reasonability and correctness of the system design.