基于驾驶员特性的主动避撞分级制动策略与验证*

doi:10.19562/j.chinasae.qcgc.2019.03.009

汽车工程 ›› 2019, Vol. 41 ›› Issue (3): 298-306.doi: 10.19562/j.chinasae.qcgc.2019.03.009

基于驾驶员特性的主动避撞分级制动策略与验证^*

胡远志^1,2,杨喜存²,刘西²,黄玲³

1.汽车噪声振动和安全技术国家重点实验室,重庆 400054;
2.重庆理工大学,汽车零部件先进制造技术教育部重点实验室,重庆 400054;
3.上汽依维柯红岩商用车有限公司,重庆 401122

收稿日期:2017-12-26 出版日期:2019-03-25 发布日期:2019-03-25
通讯作者: 刘西,副教授,博士,E-mail:liuxi@cqut.edu.cn
基金资助:
国家自然科学基金(51405050)、重庆市重点产业共性关键技术创新专项项目(cstc2015zdcy-ztzx60010)、重庆市基础与前沿研究计划项目(cstc2015jcyjA00048)和重庆市科技创新领军人才支持计划(cstccxltrc201704)资助

Hierarchic Braking Strategy for Active Collision Avoidance and Its Verification Based on Drivers Characteristics

Hu Yuanzhi^1,2, Yang Xicun², Liu Xi² & Huang Ling³

1.State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing 400054;
2.Chongqing University of Technology, Key Laboratory of Advanced Manufacture Technology for Automobile Parts, Ministry of Education, Chongqing 400054;
3.SAIC-IVECO HONGYAN Commercial Vehicle Co., Ltd., Chongqing 401122

Received:2017-12-26 Online:2019-03-25 Published:2019-03-25

摘要/Abstract

摘要： 为准确而直观地判断当前工况的危险程度,充分利用已知的车间运动信息,以安全时距模型为基础,提出了一种新的碰撞时间(TTC)的建模方法。基于危险判定指标TTC开发了一种符合驾驶员避撞特性的主动避撞系统;设计了主动避撞分级制动策略,其关键参数根据驾驶员特性和实车试验结果确定;同时,引入了一个预警门限值T_w,设计了采用声、光预警的主动避撞预警策略,帮助驾驶员实现有效避撞。实车试验结果表明:该系统的分级制动和预警策略符合驾驶员的避撞特性,体现了驾驶员控制的优先性和协调性,可有效避免碰撞,满足汽车主动避撞的要求。

关键词: 主动避撞, 安全时距模型, 碰撞时间, 分级制动, 预警门限值

Abstract: To judge the danger degree of current situation accurately and intuitively, fully utilizing the known information of inter-vehicle movement and based on safe time headway model, a new modeling method of time-to-crash (TTC) is proposed. An active collision avoidance system conforming to the collision avoidance characteristics of driver is developed based on the risk judging indicator TTC. A hierarchic braking strategy for collision avoidance is designed, whose key parameters are determined based on driver’s characteristics and real vehicle test results. In addition, a warning threshold Tw is introduced and an active collision avoidance warning strategy in audible and visual forms is designed to help driver fulfill effective collision avoidance. The results of real vehicle test show that the hierarchic braking and warning strategy of the system conform to driver’s characteristics, embody the priority and coordination of driver’s control, and can effectively avoid crash, meeting the requirements of active collision avoidance of vehicles

Key words: active collision avoidance, safe time headway model, time to collision, hierarchic braking, warning threshold

胡远志,杨喜存,刘西,黄玲. 基于驾驶员特性的主动避撞分级制动策略与验证^*[J]. 汽车工程, 2019, 41(3): 298-306.

Hu Yuanzhi, Yang Xicun, Liu Xi & Huang Ling. Hierarchic Braking Strategy for Active Collision Avoidance and Its Verification Based on Drivers Characteristics[J]. , 2019, 41(3): 298-306.

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基于驾驶员特性的主动避撞分级制动策略与验证^*

Hierarchic Braking Strategy for Active Collision Avoidance and Its Verification Based on Drivers Characteristics

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