该文在对现有汽车主动避撞系统分析的基础上,提出了一种改进方法.通过对汽车制动系统增加有效的发射接收装置,并利用CAN网络中的优先级仲裁方式和悬架电脑的控制,使汽车之间可以相互“发现”,能在无人干扰的情况下实现汽车的自动刹车,有效地避免了汽车事故的发生.同时,对汽车的电子喷油系统也进行了类似的改进.此方法较好地弥补了汽车主动避撞系统的不足.“,”Base on analysing the existing autocar Collision-avoidance system,the arcticle puts forward a improve methods .Adding the effective beam-incept equipment to the autocar,and making use of PRI arbitration mode of CAN-Network and brake system controlling by inner computer,the autocars can be detected one another.It could achieve automatic brake in the case of none disturb,and avoid autocar accidents effectively.So does the electronic fuel injection system .The improve methods could make up the lack of autocar Collision-avoidance system better.