Abstract: To address the problems of fragmented requirement management and interdisciplinary collaboration barriers in traditional automotive instrumentation panel (IP) system design, this paper proposes an innovative design method of model-based systems engineering (MBSE) based on systems modeling language (SysML). By constructing a four-layer progressive model architecture spanning "requirements－functions－logic－physical" and integrating the MagicGrid methodology, the IP system achieves closed-loop requirement traceability and verification throughout the entire lifecycle. The paper first elaborates the fundamental concepts of SysML, then establishes a multiphase MBSE design process encompassing requirement elicitation, functional decomposition, logical architecture mapping, and physical implementation based on the development project of IP system for a mass production vehicle. Results demonstrate that compared to traditional design methods, the proposed approach significantly enhances requirement management normalization, improves cross-domain collaboration consistency, and effectively reduces iterative development costs.

Key words: SysML; MBSE; automotive IP; MagicGrid; requirements traceability

摘要： 针对传统汽车仪表板（IP）系统设计中存在的需求管理碎片化与多学科协同困难等问 题，文章提出基于系统建模语言（SysML）的模型驱动系统工程（MBSE）创新设计方法，通 过构建“需求－功能－逻辑－物理”四层递进式模型架构，集成 MagicGrid 方法论实现 IP 系 统需求全生命周期追踪与验证闭环。文章首先阐述了 SysML 的基本概念，然后结合某量产车 型 IP 系统开发项目，建立涵盖需求捕获、功能分解、逻辑架构映射与物理实现的多阶段 MBSE 设计流程。结果表明，相较于传统设计方法，所提方法可显著提升需求管理规范性，增强跨 学科协同一致性，并有效降低迭代开发成本。

关键词: SysML；MBSE；汽车 IP；MagicGrid；需求追溯