人-车-路耦合环境中车辆稳态安全仿真

发布时间：2018-04-19 07:58

本文选题：交通安全 + 车辆稳定性　；参考：《中国安全科学学报》2015年01期

【摘要】：为揭示驾驶员、道路、车辆综合作用下车辆运行状态的失稳机理,基于多Agent建模与安全仿真技术,构建包含驾驶员、道路、车辆、协调中心、人机接口等5方面的多Agent车辆稳态安全仿真框架;建立车辆多体动力学、道路三维空间、驾驶员预瞄控制与跟随仿真模型,从车辆稳定性和驾驶员操作负荷2方面分析车辆稳态安全性。以小轿车为代表车型,针对某二级公路开展车辆稳态安全仿真试验。仿真结果表明,当汽车以60和70 km/h行驶时,前后轮总体围绕平均轴重波动,稳态运行;以80 km/h行驶时,汽车冲出车道,轮胎最小垂直反力仍然大于0;3种速度下侧向加速度均大于0.3 g(g为重力加速度),且速度越高,侧向加速度越大,表明汽车冲出车道由侧滑引起。
[Abstract]:In order to reveal the unstable mechanism of vehicle running state under the comprehensive action of driver, road and vehicle, based on multi- modeling and safety simulation technology, a coordination center including driver, road, vehicle and coordination is constructed.The simulation model of vehicle multi-body dynamics, three-dimensional road space, driver preview control and follow is established, which includes five aspects: man-machine interface, multi- vehicle steady-state security simulation framework, and so on.The steady state safety of the vehicle is analyzed from the aspects of vehicle stability and driver operating load.Taking the car as the representative vehicle, the vehicle steady state safety simulation test is carried out for a second class highway.The simulation results show that when the vehicle runs at 60 and 70 km/h, the front and rear wheels generally fluctuate around the average axle load and run stably, and when driving at 80 km/h, the vehicle bursts out of the driveway.The minimum vertical reaction force of tire is still greater than 0%. The lateral acceleration of the tire is greater than 0.3 g / g, and the higher the speed, the greater the lateral acceleration, which indicates that the car driveway is caused by sideslip.
【作者单位】：长安大学公路学院;
【基金】：西部交通建设科技项目(2011318362810) 陕西交通科技项目(12-30k) 浙江交通科技项目(2014H35)
【分类号】：U491.25

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