汽车主动安全预警研究

Research on Automobile Active Safe Early-warning

介绍了新型协调自适应巡航控制（CACC）的分层控制架构。该架构主要包括控制准则及各层控制映射结构,具体功能通过在各层及层与层之间接口实现。利用车辆定位和无线通信技术实现车辆碰撞预警,如果车辆的位置和速度可被测量并保证相对精度然后传输给相邻车辆,该防碰撞预警系统就是有意义的。要求定位信息的标准差达到50 cm以内的精度,以支持预警的可靠性及一致性。

This paper introduces hierarchical control architecture of cooperative adaptive cruise control（ CACC ）. The architecture mainly includes control criterion and hierarchical control mapped structure. The specific function is accomplished by each layer and of the interfaces between layers. Vehicle collision warning system is implemented by use of vehicle positioning and wireless communication technologies. If the positions and velocities of the vehicles can be known accurately and can be communicated to neighboring vehicles, the warning system is useful, which requires a standard deviation of positioning accuracy of about 50 cm in order to support reliable and consistent warnings.