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汽车安全与节能学报

JASE ›› 2016, Vol. 07 ›› Issue (03): 254-264.DOI: 10.3969/j.issn.1674-8484.2016.03.002

• 汽车安全 • 上一篇    下一篇

用于微型车的头颈约束系统的设计( 英文)

杨刚 / David HENDERSON [ 英国]，周青   

  1. 清华大学 汽车安全与节能国家重点实验室，北京 100084，中国
  • 收稿日期:2015-11-01 出版日期:2016-09-25 发布日期:2016-09-30
  • 作者简介:第一作者 / First author ： David HENDERSON (1986—)，UK / 英国。E-mail: davidhenderson@126.com 第二作者 / Second author ： 周青(1964—)，美国籍，教授。E-mail: zhouqing@tsinghua.edu.cn
  • 基金资助:

    中国 国家自然科学基金资助项目( 部分地)

Design of a Head and Neck Restraint System for Use in City Cars

David HENDERSON, ZHOU Qing   

  1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Received:2015-11-01 Online:2016-09-25 Published:2016-09-30
  • Supported by:

    National Natural Science Foundation of China (partly) (51675295)

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摘要：

微型车在城市通勤中有多种优势，近年来在欧洲、日本和中国的使用不断在增加。另一方面，由于尺寸小，微型车的碰撞保护面临很大的挑战。本文开发了一种适用于普通汽车环境的新型头颈部约束系统，旨在碰撞中实现类似赛车系统对头颈部运动的约束。给出了此头颈部约束系统的设计概念和碰撞保护原理，建立了相应的刚体模型；根据在侧碰过程中该头颈保护系统快速展开到位的要求，进行了能量分析。结果表明：当气囊以约4 倍于前碰气囊的充气速度展开时，驱动支撑于车顶的头颈保护系统，可在15 ms 以内到位。该新型头颈约束系统还需要进一步设计和验证，才能应用。

关键词: 汽车安全, 微型车, 头部约束, 配置时间, 侧面碰撞

Abstract:

City cars have various advantages in urban commuting and have become increasingly popular in Europe, Japan and China. However, due to their small size, city cars face significant challenge with collision protection. A new type of head and neck restraint was envisioned for providing similar motion control to that of race car systems but in such a way that it can be used in passenger cars. The concept of the design and its working principle were described in this paper. A rigid body model of the head restraint was developed to evaluate the requirements of an airbag inflator that can quickly deploy the system in a side impact and an energy
analysis was used to comment on the feasibility of such a system. The results show that an airbag with a rate of pressure increase approximately four times that of a standard frontal airbag was sufficient to deploy the system within 15 ms. This new concept of head and neck restraint system will need further design and validation in application.