关键词: 组合仪表；黑屏问题；故障树分析法；数组越界

Abstract: To deeply analyze the root cause of the black screen failure in the Instrument cluster of a certain vehicle model and provide solutions for improving the quality of the instrument cluster. In this paper, the failur of instrument cluster is analyzed, diagnoses the symptoms and causes to quickly locate issues, and improves product quality. Testing and validating the improved software solution in a full vehicle environment, it has achieved the expected results, demonstrating that the improvement plan is effective and feasible. It provides insights and reference for the similar issues in other vehicle platforms, as well as lessons learned for the development of new model instrument clusters to avoid the recurrence of duplicate issues in the future.

Key words: Instrument cluster; Black screen failure; Fault tree analysis; Out of range