摘要
针对汽车防撞安全距离模型中采用固定制动反应时间不能真实反映驾驶员驾驶特性的问题,提出了采用不同类型驾驶员制动反应时间检测汽车防撞安全距离的方法。首先,选取四种类型驾驶员,通过实验测得驾驶员制动反应时间,然后分别利用不同驾驶员制动反应时间参数建立汽车防撞安全距离模型,在前车运动状态发生变化时分别进行研究。最后利用MATLAB以及Carsim软件进行联合仿真,仿真结果表明,用上述方法建立的安全距离模型计算得到的安全距离随车辆速度增大时,安全距离会非线性增长,更加符合驾驶员的真实主观感受,且结果发现不同类型驾驶员所需要的防撞安全距离存在一定差异性,男老年谨慎型驾驶员比其它三种驾驶员所需要的防撞安全距离略大。
Considering that automobile anti-collision safety distance model with fixed brake reaction time can not reflect the driver＇s driving characteristics ,we proposed a ear crash safety distance detection method using brake reaction time of different types of drivers. Firstly, we selected four types of drivers, and measured driver＇s braking reaction time through experiments. Secondly, we established an automobile anti-collision safety distance model using different driver＇s braking reaction time parameters. Finally, we used MATLAB and CarSim software to do co-simulation. The simulation results show that the safe distance calculated by this method increases with vehicle speed. Safe distance grows non-linearly, which is in line with the driver＇s subjective experiences. Simulation also find that different style drivers request different anti-collision safety distance, and that the cautious aged male drivers need large distance than the other drivers in anti-collision safety distance.
出处
《计算机仿真》
CSCD
北大核心
2016年第7期449-453,共5页
Computer Simulation
基金
辽宁省高等学校优秀人才支持计划(LJQ2012058)
关键词
驾驶员类型
反应时间
汽车防撞
安全距离
行车安全
Driver styles
Action time
Automobile collision avoidance
Safety distance
Driving Safety
