CAJ | 학술논문

针对汽车追尾碰撞事故频发和事故中驾乘人员头颈部易受损伤等问题，利用激光雷达测距和机电控制相结合的技术，提出了一种车辆防追尾碰撞系统，对高位制动灯和主动式头枕进行控制。首先利用激光雷达和本车状态信息对行车环境进行预测；接着对后车分液压和气压两种制动形式进行行车安全车距的分析，推导出临界安全车距的计算公式；最后通过AT89C51单片机系统预设的程序，将实际行车间距与临界安全车距进行比较，并据此控制高位制动灯的开闭和主动式头枕控制系统的执行。所提出的方法有较好的工程实用性。
침대기차추미팽당사고빈발화사고중가승인원두경부역수손상등문제，이용격광뢰체측거화궤전공제상결합적기술，제출료일충차량방추미팽당계통，대고위제동등화주동식두침진행공제。수선이용격광뢰체화본차상태신식대행차배경진행예측；접착대후차분액압화기압량충제동형식진행행차안전차거적분석，추도출림계안전차거적계산공식；최후통과AT89C51단편궤계통예설적정서，장실제행차간거여림계안전차거진행비교，병거차공제고위제동등적개폐화주동식두침공제계통적집행。소제출적방법유교호적공정실용성。
Aiming at the problem of frequent occurrence of rear-end collision and drivers' vulnerability to head and neck injuries in rear-end collision, a rear-end collision avoidance system is proposed to control high-mounted braking light and active head restraint by adopting a technology combining laser radar ranging and electro-mechanical control. Firstly the driving environment is predicted by using laser radar and the state information of own vehicle;Then the safe driving distance is analyzed for both hydraulic and pneumatic brakes of following vehicle with the formula of critical safe driving distance derived;Finally with the preset program in AT89C51 MCU system, the real inter-vehicle distance is compare with critical safe driving distance, and the outcome is used as a judgment to control the on-off of high-mounted braking light and the actuation of active head restraint. The technique proposed has a good engineering practicality.