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汽车安全与节能学报

JASE ›› 2019, Vol. 10 ›› Issue (3): 308-316.DOI: 10.3969/j.issn.1674-8484.2019.03.006

• 汽车安全 • 上一篇    下一篇

两车斜角碰撞工况下的约束系统优化趋势分析

曹立波 1,2，张 超 1，颜凌波 1*，戴宏亮 1，张瑞锋 3#br#   

  1. (1.汽车车身先进设计制造国家重点实验室，湖南大学，长沙 410082，中国；2.湖南大学 深圳研究院，深圳 518057，中国；3.清华大学 深圳研究生院，深圳518000，中国)
  • 收稿日期:2019-04-02 出版日期:2019-09-30 发布日期:2019-10-01
  • 通讯作者: 颜凌波(1984—)，男( 汉)，湖南，讲师。E-mail：milanylb@hotmail.com。
  • 作者简介:第一作者：曹立波（1964—），男（汉） ，湖南，教授。E-mail：hdclb@163.com。 第二作者：张超（1995—），男（汉），浙江，硕士研究生。E-mail： tyro_zc@163.com。
  • 基金资助:

    深圳市科技研发资金(JCYJ20160530192230252)； 汽车车身先进设计制造国家重点实验室开放基金(31715013)。

Analysis of the optimization trend of restraint system in two car oblique crash

CAO Libo 1,2, ZHANG Chao 1, YAN Lingbo 1*, DAI Hongliang 1, ZHANG Ruifeng 3   

  1. (1.State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, China; 2. Research Institute at Shenzhen, Hunan University, Shenzhen 518057, China; 3. Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, China)
  • Received:2019-04-02 Online:2019-09-30 Published:2019-10-01

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摘要：

       为了探究两车斜角碰撞工况下约束系统优化趋势，建立了30°斜角碰撞工况下的运动型实用 汽车（SUV），中型车，小型车的驾驶员约束系统模型，对其约束系统灵敏因子分别进行目标车和同 伴车的单车参数优化和对两车乘员加权损伤准则（WIC）值之和最低进行碰撞兼容性组合优化。结果 表明：在车车斜角碰撞中，无论何种车型，约束系统参数优化呈现气囊排气孔面积趋于增大、气体质 量流率趋于增大、安全带限力值趋于降低、预紧器作用时间趋于推迟的趋势；组合优化后，更接近碰 撞中初始乘员WIC值更大的车辆参数优化趋势。

关键词: 汽车被动安全 , 斜角碰撞 , 约束系统 , 参数优化 , 碰撞兼容性

Abstract:

Some driver restraint system models were developed for sport utility vehicle (SUV), medium-sized car and small-sized car to explore the optimization trend of restraint system in car-to-car oblique crash of 30°. The restraint system optimizations were conducted based on the sensitivity factors for the subject vehicle, the partner vehicle and the combination with the consideration of crash compatibility by minimizing the sum of weighted injury criterion (WIC) value of both. The results show that to the types of the vehicles mentioned above, there are certain optimization trends for the factors of restraint system: the air bleed area and mass flow of airbag tend to increase, the seatbelt force limit tends to decrease, and the pre-tensioner action time tends to be postponed. During the combined optimization, the parameters’ optimization trend is closer to that of the vehicle with the larger initial WIC value.

Key words: automotive passive safety ,  oblique crash ,  restraint system ,  parameters optimization , crash compatibility