基于EA的电子电气架构功能设计探讨

Discussion on Functional Design of Electronic and Electrical Architecture Based on EA

在软件定义汽车时代背景下,新一代的汽车电子电气架构(以下简称E/E架构)不断进化。物理拓扑上,控制器ECU数量大幅减少,集中度提高,拓扑方式从分布式到域集中式,再到中央集成大脑逐步演进;功能开发思路上,从传统的以明确各ECU之间交互为主体任务,实现功能为主线,切换到现在的以服务定义和ECU的软件接口设计为主体,穷尽硬件平台能力为主线,覆盖面更广,功能开发深度更深。传统的基于文档的功能设计方式,已不足以满足现阶段功能开发需求。本文结合项目实践案例,基于Enterprise Architect(以下简称:EA)工具对SOA(Service Oriented Architecture,面向服务架构)架构功能设计方法进行应用和探索。

Under the background of continuous evolution of E/E architecture,the next generation of automotive software.In terms of physical topology,the number of controller ECUs has been greatly reduced and the concentration has been improved.The topology mode has gradually evolved from distributed to domain centralized,and then to central integrated brain;In terms of function development ideas,from the traditional one that takes clarifying the interaction between ECUs as the main task and realizing functions as the main line,to the current one that takes service definition and ECU software interface design as the main body and exhausts the ability of hardware platform as the main line,the coverage is wider and the function development depth is deeper.The traditional document based function design method is not enough to meet the needs of function development at this stage.Combined with the project practice case,this paper applies and explores the functional design method of SOA(Service Oriented Architecture)architecture based on Enterprise Architect(hereinafter referred to as EA)tool.