汽车碰撞预警与碰撞吸能技术结合的CST控制系统

J4 ›› 2011, Vol. 22 ›› Issue (6): 751-755.

• 车辆工程 • 上一篇

汽车碰撞预警与碰撞吸能技术结合的CST控制系统

杜青云1,2;雷正保1,2;魏书彬1,2

1.长沙理工大学道路灾变防治及交通安全教育部工程研究中心,长沙,410004

2.长沙理工大学公路工程教育部重点实验室,长沙,410004

出版日期:2011-03-25 发布日期:2011-04-15

CST Control System Based on Combination of Automotive Collision Warning and Collision Energy Absorption Technology

Du Qingyun1,2;Lei Zhengbao1,2;Wei Shubin1,2

1.Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road & Traffic Safety,Ministry of Education,Changsha University of Science and Technology,Changsha,410004

2.Key Laboratory of Highway Engineering,Ministry of Education,Changsha University of Science and Technology,Changsha,410004

Online:2011-03-25 Published:2011-04-15

摘要/Abstract

摘要：

为了使螺纹剪切式（CST）碰撞吸能装置能像安全气囊一样，在汽车遇到危险时能够被迅速推出,以单片机控制系统为核心，设计了一种汽车碰撞预警和碰撞吸能技术相结合的CST控制系统。控制单元通过接收路面条件开关信号及车速传感器的车速信号进行数据处理，计算出汽车此时应保持的安全距离，并将该安全距离与毫米波雷达所测实际距离进行比较，一旦实测距离小于安全距离则启动报警单元。根据上述控制系统制作了一个相应的电路板，从而证明了系统的可行性。

关键词:

汽车安全, 碰撞预警, 碰撞吸能, CST控制系统

Abstract:

To make the CST device outstretch quickly when the car is in danger just like a airbag,a control system was devised. The control system took MCU

(micro control unit) as the core, through receiving wheel speed signals from the sensor, the MCU will calculate the speed and the corresponding safety distance, then compare it with the actual distance measured by ranging system, if the actual distance was less than

the safety distance, the system will alarm and launch the CST in response to the danger because the driver did not response timely. According to the control system, an control circuit board was made at last. It proves the feasibility of the control system. 

Key words: vehicle safety, anti-collision warning, energy absorption

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