汽车工程学报2025，Vol.15Issue(3)：297-305,9.DOI:10.3969/j.issn.2095-1469.2025.03.03
预碰撞制动乘员响应及侧碰工况离位乘员损伤分析
Occupant Kinematics During Pre-Crash Braking and Injury Analysis of Out-of-Position Occupants in Side Impacts
摘要
Abstract
At present,the vehicle side impact safety evaluations rarely consider the effect of pre-crash braking on occupant posture.In order to study the occupant displacement induced by braking during the pre-crash phase and its impact on occupant kinematics and injury outcomes under side impact conditions,the paper combines volunteer experiments with CAE simulations.Three side impact models,including a standard posture model,a muscle-tensed model,and a muscle-relaxed model,were developed to compare differences in occupant kinematics and key injury indicators across the models.The results show that,during braking,the volunteers experienced greater displacement under the relaxed muscle state,with the maximum displacements of the head andfirst thoracic vertebra(T1)reaching 225 mm and 145 mm,respectively.This displacement significantly changed the contact between the upper body of the dummy and the side restraint system during the side impact,creating a risk that the dummy's chest could move outside the effective protection zone of side airbag.The peak Y-acceleration of the head was increased by 163.98 m/s2(79.4％),and the maximum abdominal compression was increased by 13.53 mm(64.0％)during the side impact.These results provide valuable insights for the development of advanced restraint systems and integrated safety testing methods.关键词
紧急制动/乘员离位/侧面碰撞/乘员损伤Key words
emergency braking/occupant displacement/side impact/occupant injury分类
交通运输引用本文复制引用
崔东,曹树谦,杨昊,蒋成约,韩菲菲..预碰撞制动乘员响应及侧碰工况离位乘员损伤分析[J].汽车工程学报,2025,15(3):297-305,9.基金项目
国家自然科学基金项目(51405050) （51405050）
重庆市教委科学技术研究项目(KJQN201901141) （KJQN201901141）
