基于异响产生机制的汽车座椅结构优化

Optimization of Automotive Seat Structure Based on BSR Generation Mechanism

系统分析了新能源汽车座椅异响的产生机制,包括摩擦异响、敲击异响和共振异响,探讨了材料兼容性、结构设计、装配精度等导致异响的因素。结合异响开发流程和控制要素提出了具有针对性的改进措施,如材料匹配优化、结构刚度增强、尺寸公差及装配精度控制和结构多因素设计控制。通过实施座椅改进措施,座椅异响问题的出现概率从75%显著降低至3%,有效提升了整车质量和用户满意度,为汽车座椅异响控制提供了实践经验。

This paper systematically analyzes the generation mechanism of new energy vehicle seat buzz, squeak and rattle (BSR), includingfriction BSR, knocking BSR and resonance BSR, and discusses factors causing rattle such as material compatibility, structural design and assemblyprecision. Combined with the development process and control elements of BSR, targeted improvement measures ware proposed, such as materialmatching optimization, structural stiffness enhancement, precise control of dimensional tolerances and structural multi-factor design adjustment.Through the implementation of seat improvement measures, the probability of seat BSR problems was significantly reduced from 75% to 3%, whicheffectively improved the quality of the whole vehicle and user satisfaction, and provided practical experience for the control of automotive seat BSR.