集成主被动式安全带的性能评估及优化分析

摘要/Abstract

摘要： 针对高级驾驶员辅助系统（ADAS）功能多、集成度低的情况，提出了将可逆预紧式安全带与车道偏离预警系统、前方碰撞预警系统和疲劳驾驶监测系统集成为一体的集成式主被动安全系统。在探讨了该集成系统的工作原理和控制策略基础上，通过开展志愿者实车道路实验研究了前方预警系统的碰撞时间阈值、安全带预紧力以及安全带预紧时产生的噪声三个因素对乘员主观感受的影响。对志愿者的主观评价和实验数据的对比分析表明：该集成系统的控制策略逻辑合理，在各个工况下能够主动触发以提醒和约束乘员；但是初期由于预警提醒的频次过高和噪声较大影响了乘员的驾驶体验。经过降低预警系统碰撞时间阈值和优化调整安全带的传动结构，提高了乘员的驾驶体验。该集成式主动安全系统可有效地辅助驾驶员驾驶，且满足乘员的主观可接受度。

关键词: 主动式安全带, 高级驾驶员辅助系统, 碰撞时间阈值, 志愿者实验, 主观评价

Abstract: Aiming at the situations of multi-function and low integration of advanced driver assistance system(ADAS), an integrated active safety system was proposed, which integrated reversible preloading seat belt with lane departure warning system, forward collision warning system and fatigue driving monitoring system. On the basis of discussing the working principles and control strategies of the integrated system, three factors influencing driver's subjective feeling were studied by volunteer real-road tests, which were the TTC threshold for triggering forward collision warning system, the pre-tightening forces of seat belts, and working noises generated during seat belt pre-tightening. By comparing and analyzing the subjective evaluations of volunteers and tests data, the results show that the control strategy of the integrated system is logical and it may be actively triggered to alert and restrain the occupants under various working conditions, but the driver's subjective feeling is affected by the high frequency of warning and large noises. The driver's subjective feeling was improved by lowering the TTC threshold and optimizing the transmission structures of seat belts. The integrated active safety system may effectively assist the drivers to drive and satisfy the subjective acceptability of passengers.

Key words: active seat belt, advanced driver assistance system(ADAS), time to collision(TTC) threshold, volunteer experiment, subjective evaluation

中图分类号:

U461.91

宋志强1;曹立波1;欧阳志高1;邱洋迪2;陈凯2. 集成主被动式安全带的性能评估及优化分析[J]. 中国机械工程.

SONG Zhiqiang1;CAO Libo1;OUYANG Zhigao1;QIU Yangdi2;CHEN Kai2. Performance Evaluation and Optimization Analysis for Integrated Active and Passive Seat Belts[J]. China Mechanical Engineering.

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