基于RMU终端的车辆远程升级系统应用研究

Development and Application of Vehicle OTA Technology Based on Remote Monitor Unit

随着汽车智能网联技术的快速发展,OTA已经成为汽车未来的一个发展趋势。提出一种基于外接RMU终端的被动式远程升级方案。通过在车辆OBD端口外接RMU终端设备,建立车端与云端服务器之间的远程数据通信,利用脚本文件实现对车辆CAN总线ECU软件的自动刷写控制,通过Web端网页和移动端APP实现对车辆升级进度和状态的实时可视化监控。对于传统主机厂,在其OTA技术还未发展成熟和大范围应用的背景下,基于RMU终端的车辆远程升级方案具有特殊实用价值和意义。

With the rapid development of automotive intelligent network technology,OTA becomes a trend in the future.This paper presents a RMU-based OTA technology solution for vehicle ECU date files update.The data communication between the vehicle and the cloud server is established by connecting RMU device with the OBD port of vehicle.The script is used to realize the automatic flash of vehicle ECU software.The real-time visual monitoring of the vehicle upgrading progress and status is realized through the web page and the mobile app.Under the background that OTA technology of vehicle is not mature and widely used,RMU-based OTA technology solution has special value and practical significance for traditional OEM.