中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (4): 141-146.doi: 10.16265/j.cnki.issn1003-3033.2020.04.022

• 公共安全 • 上一篇    下一篇

基于行人横穿场景的AEB触发宽度优化研究

何霞1, 张道文1,2 教授, 车瑶栎1, 刘奇1, 董小飞3, 董红磊**4 高级工程师   

  1. 1.西华大学 汽车与交通学院,四川 成都 610039;
    2.四川西华交通司法鉴定中心,四川 成都 610039;
    3.上海机动车检测认证技术研究中心有限公司,上海 201805;
    4.国家市场监督管理总局缺陷产品管理中心,北京 100191
  • 收稿日期:2020-01-12 修回日期:2020-03-21 出版日期:2020-04-28 发布日期:2021-01-27
  • 通讯作者: **董红磊(1982—),男,山东昌邑人,博士,高级工程师,主要从事智能汽车安全技术研究、汽车召回过程管理等工作。E-mail:donghl@dpac.gov.cn。
  • 作者简介:何霞(1995—),女,四川绵阳人,硕士研究生,研究方向为道路交通安全。E-mail:956957921@qq.com。
  • 基金资助:
    西华大学研究生创新基金资助(ycjj2019071);省重点实验室开放课题(szjj2018-129);道路交通事故场景自动筛选及自动分类(1828);中央基本科研业务费项目(282018Y-5973)。

Optimization of AEB trigger width based on pedestrian crossing scenario

HE Xia1, ZHANG Daowen1,2, CHE Yaoyue1, LIU Qi1, DONG Xiaofei3, DONG Honglei4   

  1. 1. School of Automobile and Transportation, Xihua University, Chengdu Sichuan 610039, China;
    2. Sichuan Xihua Jiaotong Forensic Center, Chengdu Sichuan 610039, China;
    3. Shanghai Motor Vehicle Inspection Certification & Tech Innovation Center Co., Ltd., Shanghai 201805, China;
    4. SAMR Defective Product Administrative Center, Beijing 100191, China
  • Received:2020-01-12 Revised:2020-03-21 Online:2020-04-28 Published:2021-01-27

摘要: 为研究自动紧急制动(AEB)系统控制策略中触发宽度对行人横穿场景结果的影响,利用自动驾驶仿真软件PreScan建立道路及车辆模型,在Matlab模型控制平台Simulink中设计AEB纵向控制算法,模拟行人横穿危险场景,不断调整触发宽度,观察碰撞结果。结果表明:当汽车速度处于30~50 km/h时,系统触发宽度为1.75 m,能够起到很好的避撞效果;当汽车速度处于50~80 km/h 时,触发宽度需随行人速度增加而增加;触发宽度越宽,汽车接收信息越多, AEB误作用概率增大,故将最大触发宽度设置为3.5 m;当汽车速度处于60~80 km/h时,需同时优化触发宽度值和全力制动提前时间的长短,才能避免碰撞。

关键词: 行人横穿, 自动紧急制动(AEB), 触发宽度, 优化, 纵向控制策略

Abstract: In order to study influence of trigger width on pedestrian crossing scenario results in AEB control strategy, road and vehicle models were built by using automatic driving simulation software PreScan. Then, AEB longitudinal control algorithm was designed in Matlab model’s control platform Simulink to simulate pedestrians crossing scenarios. And trigger width was continuously adjusted to observe whether collision was avoided. The results show that when car speed is 30-50 km/h, the system's trigger width is at 1.75 m, which can help avoid collision effectively. When speed is 50-80 km/h, it needs to increase along with the increase of pedestrian speed. The wider it is, the more information car receives, and the more possible AEB malfunction will be. Therefore, the maximum trigger width is set to be 3.5 m. When car speed reaches between 60-80 km/h, it is necessary to optimize alue and full braking advance time simultaneously so as to avoid collision.

Key words: pedestrian crossing scenario, automatic emergency braking (AEB), trigger width, vertical control strategy

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