关键词: 新能源汽车；总装；过程质量；工艺改善费用；失效模式及后果分析；制造过程； 质量管理

Abstract: This paper finds that there are some problems such as unclear standards and unrealistic improvement measures in the process of preparing the potential failure mode and effects analysis document of the final assembly of the engine plant, through analyzing the potential failure mode and effects analysis of the final assembly of a domestic first-class engine plant on the spot. Through extensive research on the actual needs of engine plants and in-depth discussion with the staffing, the precautions in the preparation process of the final assembly potential failure mode and effects analysis are summarized from experience, which could help the engineers improve the preparation process of the final assembly potential failure mode and effects analysis, and make the prepared final assembly potential failure mode and effects analysis more closely linked with the quality management of the final assembly process of new energy vehicles. Potential failure mode and effects analysis can truly and effectively improve the quality assurance capability of the final assembly process of new energy vehicles, reduce the occurrence rate of the quality failures of the final assembly process of new energy vehicles from the source of manufacturing, and effectively control the potential failure mode of the final assembly manufacturing process in the vehicle development stage, so as to greatly reduce the cost of process improvement of the final assembly after the mass production of vehicles and avoid the occurrence of major quality failures of large batches of vehicles.

Key words: New energy vehicle; Final assembly; Process quality; Cost of process improvement; Potential failure mode and effects analysis; Manufacturing process; Quality management