汽车纵向主动避撞DRV安全距离模型建模研究

Analysis on Safety Distance Model and Modeling DRV Safety Distance Model

通过对现有车辆安全距离模型的特点进行分析,发现现有安全距离模型没有综合考虑驾驶员因素、交通路况因素和车辆制动性能因素对安全距离准确性的影响。因此,分析驾驶员因素、交通路况因素和车辆制动性能因素对安全距离的影响,并在此基础上创新建立了DRV安全距离模型。利用Prescan仿真平台对DRV安全距离模型进行效果验证,结果表明:DRV安全距离模型能够同时兼顾驾驶安全和道路使用率,基于此模型计算的报警安全距离和自动制动安全距离更加合理。

Characteristics of the existing vehicle safety distance models were analyzed,and the effects of driver factors,road factors and vehicle,factors on the accuracy of the safety distance were found.In this paper,driver factors,road factors,vehicle factors were considered and the DRV safety distance model was established innovative. The effect of DRV safety distance model was tested by Prescan simulation platform. The results show that DRV safety distance model can consider driving safety and road usage simultaneously. The result show that the alarm safety distance and automatic breaking safety distance which are based on the DRV safety distance model are more reasonable.