首页|参数扰动对一种先前的车辆制动控制和防护方法的影响

参数扰动对一种先前的车辆制动控制和防护方法的影响

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探究了作者早先提出的一种车辆制动控制防护方法在参数扰动下的防护效果.用MADYMO虚拟仿真软件,对4种形状的典型车头开展了仿真,分析了以下参数:人体头部与车体首次接触时间、制动系统协调时间、路面附着因数:扰动时,对该制动控制防护方法的影响.结果显示:在人体头部与车体首次接触时间时为80～100 ms时,对加权伤害费用(WIC)降幅的影响最显著,但不同车型下的参数敏感性排序存在差异.在路面附着因数扰动为0.45～0.80时,人车碰撞损伤未增加;但地面所致WIC降幅均大于零,可有效降低人地碰撞损伤.在制动系统协调时间参数扰动区间为80～350 ms时,该车辆制动控制防护方法仍然保持有效.
Effect of the parameter disturbance on a vehicle brake control and protection method proposed earlier
Investigated the effectiveness of vehicle brake control protection methods proposed earlier by the author under parametric perturbations.MADYMO virtual simulation software was used to simulate 4 types of typical locomotive,and 3 parameters for analyzing the influence of disturbance on the braking control and protection method;The 3 parameters including the first contact time between human head and vehicle body,the braking system coordination time,and the road adhesion factor.The results show that the first contact time between the human head and the car body is 80～100 ms,which has the most significant impact on the reduction of weighted injury cost(WIC),but the parameter sensitivity ranking is different in different vehicle types.When the disturbance of road adhesion factor is 0.45～0.80,the damage of human-vehicle collision does not increase,but the decrease of WIC caused by ground is greater than zero,which can effectively reduce the damage of human-ground collision.When the disturbance interval of the coordination time parameter of the braking system is 80～350 ms,the braking control and protection method is still effective.

pedestrian-vehicle collisionspedestrian ground contact injuryvehicle brake controlparameter perturbationcoefficient of road adhesioncoordination time of the braking system

邹铁方、江碟、周靖、袁湘婷

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长沙理工大学 汽车与机械工程学院,长沙 410114,中国

人车碰撞事故 人地碰撞损伤 车辆制动控制 参数扰动 路面附着因数 制动系统协调时间

国家自然科学基金长沙市自然科学基金湖南省教育厅重点项目

51775056kq220822522A0236

2024

10.3969/j.issn.1674-8484.2024.04.003

汽车安全与节能学报
清华大学

汽车安全与节能学报

CSTPCD北大核心
影响因子：0.748
ISSN：1676-8484
年,卷(期)：2024.15(4)