基于CAN的UDS服务BootLoader设计

Design of Bootloader for UDS Service Based on CAN

智能汽车对于汽车电子控制单元(ECU)的升级非常频繁,需要从汽车中拆出ECU更新升级软件,该种操作会增加拆装风险和软件升级成本。基于统一诊断服务(UDS)的操作系统启动加载程序升级方法能够解决以上难题,利用UDS的上位机通过控制器局域网络总线连接升级,可以避免从智能汽车上拆卸ECU,为后续软件更新提供方便。该种升级方法也使软件的烧录流程统一规范,可以兼容不同ECU设备,方便不同厂商之间共同调试。

Smart cars frequently upgrade their electronic control units(ECUs).The ECU needs to be removed from the car to update the software.This operation increases the risk of disassembly and installation and the cost of software upgrades.The upgrade meth⁃od of operating system boot loader based on Unified Diagnostic Service(UDS)can solve the above problems.Upgrade the upper computer using the UDS through the controller local area network bus connection.Removing the ECU from the smart car can be avoided.Provide convenience for subsequent software updates.This upgrade method also makes the software burning process a uni⁃fied standard.It can be compatible with different ECU devices to facilitate joint debugging between different manufacturers。