With the rapid development of the Internet age,the cross-border integration of automobiles,communications,and information has ushered in the era of intelligent networking in the automotive industry.The addition of intelligent networking not only improves the driver’s driving experience,reduces the driver’s driving fatigue,but also reduces the occurrence of car accidents.However,when a car encounters an ECU attack while driving,it may face many problems such as losing control of some ECUs,affecting the safety of drivers and passengers,or being controlled and unlocked when parking and causing property losses to the owner.At present,the AUTOSAR organization that leads the development of automotive electronic software uses E2E(ECU to ECU)communication protection methods to solve the network communication threats faced by ECUs,thereby ensuring that cars can be used safely and normally.This article takes E2 E communication strategy as the research object,uses AUTOSAR specification as the theoretical basis,and develops ECU through Linux embedded.On this basis,the communication security of E2 E is studied,in order to realize ECU security protection and ensure the safety of automobile communication.The specific research and results are as follows:1.From the AUTOSAR architecture,it analyzes its modular development,modular integration,and modular functions,and understands modular ideas to study embedded development.Clarified the process of its E2 E communication security strategy and the feasibility of Linux embedded development.2.Analyze the functional specifications of the target embedded system TOPPERS/ASP3 kernel,understand and analyze the difference between the basic functions of the target embedded kernel and AUTOSAR OS.Clarified the connection between the kernel and AUTOSAR OS and how to carry out the corresponding development method.3.According to the AUTOSAR OS specification,the module function design corresponding system function is carried out,and the hardware is integrated and used,and the corresponding E2 E communication middleware is added to the embedded system on the hardware,and the corresponding abstract interface is configured and designed to make it function It can meet the safety standards for E2 E communication.The ultimate goal of this design is realized,its E2 E function is improved in the embedded system,and the E2 E strategy can be run.4.Through the establishment of a virtual simulation environment in the CANoe simulation environment,the network test of the nodes is carried out to verify that the ECU designed by the experimental results can achieve the safety protection of the communication between ECUs.It is expected that when researchers develop ECUs and realize their communication safety functions to ensure car safety without sufficient software equipment,they can choose to develop and realize their safety defense functions through the Linux embedded method,so as to facilitate subsequent communication Provide reference for safe development methods. |