制动工况中乘员动态响应分析及主动预紧安全带效能评价

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (24) : 240-246.

论文

胥林立1，王振飞2，胡远志1，徐紫红2，曾宪菁3

作者信息 +

Occupant’s kinematics analysis and active seatbelt performance evaluation during vehicle braking

XU Linli1, WANG Zhenfei2, HU Yuanzhi1, XU Zihong2, ZENG Xianjing3

Author information +

文章历史 +

摘要

主动控制卷收器（ACR）可减少乘员在制动时的位移和碰撞中的损伤风险，但国内相关试验较为匮乏。因此，为探究紧急制动时ACR对乘员离位现象的影响，针对2名男性志愿者，开展了初始速度为70km/h的紧急制动试验，定量测定并分析了ACR与普通卷收器下的志愿者运动响应和安全带物理参数，为ACR的进一步研发提供数据参考。结果表明，在ACR的作用下，志愿者头部和T1位移分别减小34mm和27mm，制动阶段的织带拉出量减少13mm，制动结束时织带回拉量增加62mm，运动速度峰值和安全带力则无明显变化。此外，试验分析结果还显示志愿者位移（头部、肩部和T1位移）与肩带力高度正相关。

Abstract

Active control retractor (ACR) can reduce occupant's displacement during braking and injury risk in upcoming crash, but there are few related tests in China.Therefore, to investigate the effect of ACR on the out-of-position phenomenon of occupant in emergency braking, a vehicle test with an initial speed of 70 km/h was conducted with 2 male volunteers，the volunteer kinematics and belt physical parameters of ACR configuration and ordinary retractor configuration were quantitatively measured and analyzed, which provide reference for further research.The results show that after introducing the ACR system, the displacements of volunteer head and T1 are reduced by 34 mm and 27 mm respectively, and the webbing pull-out is reduced by 13 mm during braking, the webbing pull-in is increased by 62 mm at the end of braking, but there is no significant change in the peak velocities and the webbing forces.Furthermore, the results also show that displacements of volunteer (head, shoulder and T1 displacement) are highly positively correlated with the shoulder belt force.

导出引用

胥林立1，王振飞2，胡远志1，徐紫红2，曾宪菁3. 制动工况中乘员动态响应分析及主动预紧安全带效能评价[J]. 振动与冲击, 2020, 39(24): 240-246

XU Linli1, WANG Zhenfei2, HU Yuanzhi1, XU Zihong2, ZENG Xianjing3. Occupant’s kinematics analysis and active seatbelt performance evaluation during vehicle braking[J]. Journal of Vibration and Shock, 2020, 39(24): 240-246

参考文献

[1] Ejima S, Zama Y, Ono K, et al. Prediction of pre-impact occupant kinematic behavior based on the muscle activity during frontal collision [C] // International Technical Conference on the Enhanced Safety of Vehicles. Stuttgart: ESV, 2009.
[2] Guleyupoglu B, Schap J, Kusano K D, et al. The effect of precrash velocity reduction on occupant response using a human body finite element model [J]. Traffic Injury Prevention, 2017, 18(5): 508-514.
[3] Battaglia S, Kietlinski K, Unger M, et al. Occupant protection in rear-end collisions preceded by autonomous emergency braking deployment [C] // International Technical Conference on the Enhanced Safety of Vehicles. Detroit :2017.
[4] Odate, S, Takemura, N, Seaman, W. Expansion of Motorized Seatbelt Control that Adjusts to Vehicle Behavior and the Effect of that Expansion[J]. SAE Technical Paper 2014-01-0507.
[5] Lee K S, Choi C C, Lee W T. Retraction control of motorized seat belt system with linear state observer[J]. Journal of Central South University, 2013, 20(2):385-392.
[6] 赵志杰,金先龙.乘员约束系统耐撞性数据挖掘[J].振动与冲击,2010,29(03):13-17.
Zhao Zhi-jie,Jin Xian-long. Data mining on crashworthiness data of occupant restraint system [J]. Journal of Vibration and Shock, 2010, 29(03): 13-17.
[7] 刘鑫,吴钢,尹来荣.基于近似模型管理的汽车安全带约束系统优化设计[J].振动与冲击,2016,35(06):132-136.
Liu Xin, Wu Gang, Yin Lai-rong. Optimal design of a seat belt restraint system based on approximate model management [J]. Journal of Vibration and Shock, 2016 , 35(06): 132-136.
[8] Schoeneburg R, Baumann K, Fehring M, et al. The efficiency of PRE-SAFE® systems in pre-braked frontal collision situations [C] // International Technical Conference on the Enhanced Safety of Vehicles. Washington: ESV, 2011.
[9] Komeno F, Koide T, Miyagawa T, et al. Crash sled test based evaluation of a precrash seatbelt and an airbag to enhance protection of small drivers in vehicles equipped with autonomous emergency braking systems [C] // International Technical Conference on the Enhanced Safety of Vehicles. Seoul: ESV, 2013.
[10] Ólafsdóttir J M, Östh J, Davidsson J, et al. Passenger Kinematics and Muscle Responses in Autonomous Braking Events with Standard and Reversible Pre-tensioned Restraints [C] // Proceeding of the International Conference. Gothenburg: IRCOBI, 2013.
[11] Ito D, Ejima S, Kitajima S, et al. Occupant kinematic behavior and effects of a motorized seatbelt on occupant restraint of human volunteers during low speed frontal impact: Mini-sled Tests with Mass Production Car Seat [C] // Proceeding of the International Conference. Gothenburg: IRCOBI, 2013.
[12] 曹立波,欧阳志高,贾寓词,等.自动紧急制动与可逆预紧安全带共同作用下乘员损伤分析[J].中国机械工程, 2016, 27(16): 2259-2266.
Cao Li-bo, Ouyang Zhi-gao, Jia Yu-ci, et al. Analyses of occupant injury affected by combination of autonomous emergency braking and reversible pretensioner seatbelts [J]. China Mechanical Engineering, 2016, 27(16): 2259-2266.
[13] Luo X , Du W , Zhang J . Safety benefits of belt pretensioning in conjunction with precrash braking in a frontal crash.[C]// Intelligent Vehicles Symposium. IEEE, 2015.
[14] 吴俊,宋志强,曹立波,等.集成主动预紧式安全带的乘员可接受度与优化措施[J].汽车安全与节能报,2018,9(04)379-385.
Wu Jun, Song Zhi-qiang, Cao Li-bo, et al. Occupant acceptability and its optimization for the integrated active pre-tensioning seatbelt [J]. Journal of Automotive Safety and Energy, 2018, 9(4): 379-385.
[15] Rooij L, Pauwelussen J, Camp O, et al. Driver head displacement during (automatic) vehicle braking tests with varying levels of distraction [C] // International Technical Conference on the Enhanced Safety of Vehicles. Seoul: ESV, 2013.
[16] Ghaffari G, Brolin K, Bråse D, et al. Passenger kinematics in lane change and lane change with braking manoeuvres using two belt configurations: standard and reversible pre-pretensioner [C] // Proceeding of the International Conference. Athens: IRCOBI, 2018.
[17] 曹立波,欧阳志高,郜亢,等.主动预紧式安全带控制系统的实现[J].汽车工程, 2016, 38(11): 1300-1304, 1299.
Cao Li-bo, Ouyang Zhi-gao, Gao kang, et al. The implementation of control system for active pre-tensioning safety belt [J]. Automotive Engineering, 2016, 38(11): 1300-1304, 1299.
[18] 黄丹妮. 面向主动安全的预紧式安全带控制策略研究[D].天津：天津职业技术师范大学,2017.
Huang Dan-ni. Control strategy research on preloaded seat belt for active safety [D]. Tianjin: Tianjin University of Technology and Education, 2017.
[19] Graci V, Douglas E, Seacrist T, et al. Effect of automated versus manual emergency braking on rear seat adult and pediatric occupant precrash motion[J]. Traffic Injury Prevention, 20(1):106-111.