基于主动安全防护的车辆侧翻预警系统设计

摘要

In order to avoid the vehicle rollover and to reduce traffic accidents, this paper designed a proactive security protecting and preventing rollover warning system, which is based on the embedded ve-hicle platform. The system can use sensors to monitor the palstance and acceleration of a running car. The principle is fusing data by using a modified Sage-Husa self-adapting Kalman filtering algorithm to get the car actual measured angle. When the car actual measured angle reaches the rollover threshold, the system will send out alarming information to caution the driver to take corresponding measures. With the result that it reduces the probability of vehicle rollover accident. The simulation experiment turns out that the system has a well stabilized performance of alarming ability. It can improve the vehicle active safety.%为了防止汽车在行驶过程中发生侧翻，减少交通事故的发生，设计了一种基于嵌入式车载平台的主动安全防护的车辆侧翻预警系统，通过传感器对汽车行驶时的角速度和加速度进行监测，利用改进Sage-Husa自适应卡尔曼滤波算法进行数据融合得到汽车实时侧倾角，当监测到车辆侧倾值达到侧翻指标门限值时，系统发出报警提醒驾驶人员采取相应措施，从而达到预防汽车侧翻事故的发生。系统仿真实验结果表明：该系统有着良好稳定的预警性能，能够提高汽车的主动安全性能。