摘要
汽车行业发展使传统CAN诊断烧写难以满足OEM车企需求,车载以太网诊断技术研发阶段测试验证不足,整车开发V流程中诊断验证工具及汽车诊断信息安全测试缺乏。文章聚焦基于通信的工程诊断仪方案,开展研究与实现工作。深入探究工程诊断仪的界面和软硬件方案设计,设计信息安全诊断的AES算法、诊断准入端身份校验和数字签名方案。利用Qt Designer进行前端UI开发,基于Python完成后端DoIP协议的通信封装与诊断烧写功能实现。通过Python仿真测试和实车测试验证诊断烧写功能。结果显示,此工程诊断仪可实现以太控制器DoIP诊断信息的诊断及烧写功能验证,支持自定义诊断序列定制化测试,为诊断领域研究人员提供新的研究思路。
The development of the automobile industry makes it difficult for traditional CAN diagnostic writing to meet the needs of OEM vehicle enterprises.The testing and verification of on-board Ethernet diagnostic technology in the research and development stage are insufficient,and the diagnostic verification tools and vehicle diagnostic information security testing in the vehicle development V process are insufficient.This paper focuses on the project of engineering diagnosis instrument based on communication,and carries out the research and implementation work.The interface and software and hardware design of the engineering diagnosis instrument are deeply studied,and the AES algorithm,identity verification and digital signature scheme of the diagnosis access terminal are designed.Qt Designer was used for front-end UI development,and the communication encapsulation and diagnostic burn function of back-end DoIP protocol was realized based on Python.The diagnostic burn function was verified by Python simulation test and real vehicle test.The results show that this engineering diagnostic instrument can realize the diagnosis and burn function verification of Ethernet controller DoIP diagnostic information,support custom diagnostic sequence customized testing,and provide a new research idea for researchers in the field of diagnosis.
作者
刘煜
种晶
郝泽瑜
曹青青
林梦茹
Liu Yu;Chong Jing;Hao Zeyu;Cao Qingqing;Lin Mengru(BYD Auto Co.,Ltd.,Xi'an 710018;BYD Auto Industry Co.,Ltd.,Shenzhen 518000,China)
出处
《汽车电器》
2025年第3期86-90,93,共6页
Auto Electric Parts
关键词
工程诊断仪
DoIP技术
诊断烧写
信息安全
自动化测试
engineering diagnostic instrument
DoIP technology
diagnostic burning
information security
automated testing
