Comparison of driver’s out-of-position response of dummy and human models under AEB

doi:10.3969/j.issn.1674-8484.2023.04.006

Abstract

Abstract:

In order to investigate the differences in driver’s out-of-position response under different braking intensities of dummy and human models, simulation experiments of dummy and human models were carried out. The driver-restraint system models of test device for human occupant restraint (THOR) dummy and total human model for safety (THUMS) were constructed, and the driver-restraint system model of active human model (AHM) was constructed by coupling the AHM of MADYMO and LS-DYNA finite element restraint system. The displacement-time history curves of the head, shoulders, chest and knees of dummy and human models were extracted, and the out-of-position difference analysis of dummy and human models and the analysis of driver’s out-of-position under different seat belt constraints were carried out. The results showed that the 3 models are within the range of the volunteer response channel with reference to the volunteer experimental data, and the AHM and THUMS have higher biological realism of out-off-position motion. Compared to standard seat belts, active pretension seat belts can effectively reduce the driver’s response to disengagement under autonomous emergence braking (AEB) conditions.

Key words: out-of-position response, autonomous emergency brake (AEB), active pretention seatbelt, active human model (AHM), total human model for safety (THUMS), test device for human occupant restraint (THOR) dummy

CLC Number:

U461.91

REN Lihai, LUO Zhiqin, CHEN Hao, JIANG Chengyue. Comparison of driver’s out-of-position response of dummy and human models under AEB[J]. Journal of Automotive Safety and Energy, 2023, 14(4): 448-456.

Figures/Tables 11

References 29

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制动强度	肌肉状态		颈部收缩比	颈部联合收缩延迟	强度因子	反应时间	控制器延迟
m· s^-2	颈部\脊柱	肩部\肘部\髋部\膝部	颈部收缩比	颈部联合收缩延迟	强度因子	反应时间	控制器延迟
4	激活状态	睡眠状态	0.5	未启用	0.81	0	未启用
10	激活状态	睡眠状态	0.5	未启用	1	0.1	未启用

制动强度	肌肉状态		颈部收缩比	颈部联合收缩延迟	强度因子	反应时间	控制器延迟
m· s^-2	颈部\脊柱	肩部\肘部\髋部\膝部	颈部收缩比	颈部联合收缩延迟	强度因子	反应时间	控制器延迟
4	激活状态	睡眠状态	0.5	未启用	0.81	0	未启用
10	激活状态	睡眠状态	0.5	未启用	1	0.1	未启用

仿真序号	制动强度 m·s^-2		模型			安全带类型
仿真序号	4	10	AHM	THOR	THUMS	SB	PT
1	√		√			√	√
2	√			√		√	√
3	√				√	√	√
4		√	√			√	√
5		√		√		√	√
6		√			√	√	√

仿真序号	制动强度 m·s^-2		模型			安全带类型
仿真序号	4	10	AHM	THOR	THUMS	SB	PT
1	√		√			√	√
2	√			√		√	√
3	√				√	√	√
4		√	√			√	√
5		√		√		√	√
6		√			√	√	√

部位区域	S_AHM / mm		增比 / %	S_THUMS / mm		增比 / %	S_THOR / mm		增比 / %
部位区域	S-4	S-10	增比 / %	S-4	S-10	增比 / %	S-4	S-10	增比 / %
头部_质心	52.8	71.1	34.7	52.1	93.1	78.7	16.6	57.0	243.4
肩部_右侧	32.8	64.1	95.4	13.4	33.6	150.7	8.4	41.8	397.6
肩部_左侧	28.1	37.2	32.4	18.0	34.4	91.1	6.7	48.1	617.9
胸部_中间	26.1	42.9	64.4	14.3	28.0	95.8	7	31.8	354.3
膝部_右侧	0.5	4.3	―	1.9	3.0	57.9	1.9	7.2	―
膝部_左侧	0.4	4.6	―	3.1	4.0	29.0	1.8	12.2	―