AEB工况下驾驶员姿态对损伤风险的影响

doi:10.19562/j.chinasae.qcgc.2024.10.018

Abstract

Abstract:

Driver posture in frontal crash conditions with and without autonomous emergency braking （AEB） has a significant impact on kinematic response and injury risk. In this paper， the THUMS （Ver.6.1） human finite element model is used to establish three driving postures， including standard， rearward recline， and forward recline， and a frontal collision constraint system model is established to conduct six sets of 50 km/h simulation tests for comparative analysis of the kinematic response of different driver postures with and without AEB， as well as the injury parameters of driver’s head and chest. The results show that the risk of head injury is highest in the recline posture with and without AEB intervention， with the HIC₁₅ of 817.5 and 626.9 with and without AEB， respectively. The intervention of AEB has the greatest effect on the driver's chest compression， which is increased by 89%， 115%， and 22% for the three postures， respectively. The chest compression in the reward recline posture suffers the most serious injury. The results clarify the effect of driving posture and AEB on driver kinematic response and head and chest injuries， providing a reference value for the development and design of automotive restraint systems and AEB.

Key words: frontal impact, driver posture, autonomous emergency braking, kinematic response, injury risk

Yong Han,Yuecong Zhang,Mingwang Li,Di Pan,Haiyang Zhang. Effect of Driver Posture on Injury Risk Under AEB Conditions[J].Automotive Engineering, 2024, 46(10): 1920-1927.

Figures/Tables 12

References 32

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损伤指标	损伤阈值
HIC₁₅^［26］	700
头部3 ms加速度^［26］	80g
胸部3 ms加速度^［27］	60g
颅内压力^［28］	235 kPa
肋骨塑性应变^［29］	1.4%
心脏压力^［30］	170 kPa
肺部压力^［30］	16 kPa

项目	标准姿态	后仰姿态	前倾姿态
头部	179.03	336.36	149.89
肩部	135.78	226.65	151.98
胸部	58.83	86.00	23.69
腹部	38.98	54.99	37.11
盆骨	11.52	17.76	36.05
膝关节	12.06	10.95	14.68
肘关节	69.73	-38.60	105.46

工况	头部		胸部
1	75 ms	41g	79 ms	47g
2	39 ms	33g	39 ms	32g
3	115 ms	121g	116 ms	48g
4	142 ms	100g	136 ms	36g
5	70 ms	77g	78 ms	56g
6	30 ms	52g	43 ms	37g

工况	头部	胸部
1	49 ms	26 ms
2	23 ms	25 ms
3	64 ms	41 ms
4	23 ms	25 ms
5	23 ms	24 ms
6	22 ms	23 ms

工况	头部3 ms合成加速度/g	HIC₁₅	胸部3ms合成加速度/g	胸部压缩量/mm
1	40.00	122.9	40.80	17.27
2	30.08	101.0	30.63	32.58
3	100.80	817.5	39.61	35.85
4	82.56	626.9	32.79	77.00
5	57.26	160.6	49.82	21.36
6	42.81	139.1	45.09	26.15

Effect of Driver Posture on Injury Risk Under AEB Conditions

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Figures/Tables 12

References 32

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项目	工况1	工况2	工况3	工况4	工况5	工况6
颅内压力
颅内压力	139.00 kPa	132.50 kPa	265.23 kPa	257.45 kPa	132.77 kPa	143.23 kPa
肋骨塑性应变
肋骨塑性应变	3.38%	3.87%	6.67%	1.6%	4.47%	4.00%
心肺器官压力
	心脏：485.08 kPa	心脏：461.76 kPa	心脏：1.09 MPa	心脏：416.85 kPa	心脏：487.12 kPa	心脏：552.16 kPa
	肺部：383.50 kPa	肺部：302.10 kPa	肺部：398.11 kPa	肺部：348.17 kPa	肺部：332.43 kPa	肺部：278.43 kPa

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