考虑舒适性的AEB避撞算法及仿真验证  

Simulation Verification of AEB Collision Avoidance Algorithm in Consideration of Comfort

作　　者：黄城 冀杰[1] 陈琼红 种一帆 唐雨 HUANG Cheng;JI Jie;CHEN Qionghong;CHONG Yifan;TANG Yu(College of Engineering and Technology,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学工程技术学院,重庆400715

出　　处：《重庆理工大学学报（自然科学）》2021年第4期39-48,共10页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(61304189);中央高校基本业务费专项资金重点项目(XDJK2019B053);山区复杂道路“人-车-路”系统协同与安全重庆市重点实验室开放基金项目(2018HVRC02)。

摘　　要：为进一步优化汽车自动紧急制动系统的避撞算法,设计了考虑制动过程驾乘舒适性的制动减速度控制策略。通过设置制动减速度变化缓冲区对制动减速度及其变化率进行限制,得到满足舒适性条件的减速度控制曲线。基于AEB典型测试工况对设计的减速度控制曲线进行具体分析,提出了新的制动安全距离模型。最后,建立车辆纵向动力学模型并通过CarSim与Matlab联合仿真对提出的避撞算法进行仿真验证。仿真结果显示:提出的避撞算法能够在实现有效避撞的同时满足舒适性条件。A deceleration control strategy,which has considered the driving comfort during braking,was designed to further optimize the collision avoidance algorithm of Autonomous Emergency Braking(AEB)system.By setting the change buffer to limit the braking deceleration and jerk,a deceleration control curve that satisfied the comfort conditions was obtained.Based on the specific analysis of the designed deceleration control curve under typical AEB test conditions,a new braking safety distance model was proposed.Finally,the vehicle longitudinal dynamic model was established and the proposed collision avoidance control strategy was verified through the co-simulation of CarSim and Matlab.The results of simulation show that the proposed control strategy can achieve effective collision avoidance while satisfying the comfort conditions.

关 键 词：主动安全 自动紧急制动系统 安全距离模型 驾乘舒适性 路面附着系数 

分 类 号：U461.91[机械工程—车辆工程]