主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2025, Vol. 50 ›› Issue (24): 131-136.DOI: 10.16638/j.cnki.1671-7988.2025.024.022

• 标准·法规·管理 • 上一篇    

基于新旧侧碰法规的某乘用车结果差异对比

黄惠星 1，黄凤英 1，贾丽刚 2,3,4   

  1. 1.长沙翊丰汽车科技有限公司；2.上汽通用五菱汽车股份有限公司；3.广西新能源汽车实验室； 4.广西汽车新四化重点实验室
  • 发布日期:2025-12-24
  • 通讯作者: 黄惠星
  • 作者简介:黄惠星（1991－），男，工程师，研究方向为汽车被动安全开发
  • 基金资助:
    广西科技重大专项（桂科 AA24206045）

Comparison on Performance of a Passenger Vehicle Based on Old and New Side Impact Regulations

HUANG Huixing1 , HUANG Fengying1 , JIA Ligang2,3,4   

  1. 1.Changsha Yifeng Automotive Technology Company Limited; 2.SAIC-GM-Wuling Automobile Company Limited; 3.Guangxi Laboratory of New Energy Automobile; 4.Guangxi Key Laboratory of Automobile Four New Features
  • Published:2025-12-24
  • Contact: HUANG Huixing

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摘要： 新侧碰法规《汽车侧面碰撞的乘员保护》（GB 20071－202X）正式发布前期，某车型 完成侧碰试验，并对该车型进行试验与仿真的分析拟合，参照新侧碰法规要求基于 LS-DYNA 软件进行有限元模型仿真分析，评估新旧侧碰法规变化对车身变形及假人损伤的差异影响及 优化方向。结果表明，车门及车身采用大量高强度钢及热成型钢且配置了侧气囊的车型，新 侧碰法规工况下车身变形存在变差的趋势，但是假人损伤较法规限值均有较大的裕度，无需 对车身进行加强。该研究对后续车型的开发具有一定的借鉴意义。

关键词: 新侧碰法规；LS-DYNA；侧碰对标；侧碰仿真；侧碰试验

Abstract: Prior to the official release of the new side impact regulation passenger protection in side impacts of motor vehicles (GB 20071－202X), a vehicle model completes side impact tests. The model underwent experimental and simulation analysis, with finite element modeling using LS-DYNA software to evaluate the impact of the new regulation on body deformation and dummy injury. The results show that vehicles with doors and bodies made of high-strength steel and hot-formed steel, along with side airbags, exhibited a tendency to worsen body deformation under the new side impact conditions. However, the dummy injury remained well within the regulatory limits, indicating no need for additional body reinforcement. This research has certain reference significance for the development of subsequent vehicle models.

Key words: new side impact regulations; LS-DYNA; side impact benchmarking; side impact simulation; side impact test