Abstract: In order to solve the problem of insufficient vision of the right non-motorized lane in the process of right turning, this paper proposes to install the ranging sensor in the front of the car to solve the problem. When the right turn signal is turned on, or the steering wheel turns right beyond the limit angle, the sensor starts to work, measure the position of the right pedestrian relative to the vehicle, forward speed, forward direction, and compare with the vehicle running track, calculate the possible collision time and collision point, and reflect on the center control screen to remind the driver to perform relevant operations. After research, it is found that when the vehicle turns to the right of 20°/40°, it is easy to misjudge the non-motorized lane. The system reminds the driver by image and sound to avoid traffic accidents.

Key words: Right turn auxiliary system; Distance sensor; Collision point; Collision time

摘要： 为解决汽车右转过程中，右侧非机动车道视野不足的问题，文章提出在汽车前部安装 测距传感器的方案加以解决。当右转向灯开启，或方向盘右转超过限定角度时，传感器开始 工作，测量右侧行人相对汽车位置、前进速度、前进方向，并与汽车运行轨迹比对，计算出 可能的碰撞时间及碰撞点，反映到中控屏上，以提醒驾驶员进行相关操作。经过研究发现汽 车右转向 20°/40°时，容易对非机动车道产生误判，本系统通过图像和声音对驾驶员进行提 醒，避免交通事故。

关键词: 右转辅助系统；测距传感器；碰撞点；碰撞时间