毕业论文：汽车安全气囊应用研究-精品资料.doc

淮安信息职业技术学院 综合毕业实践说明书（论文） 07~10学年 汽车工程系汽车检测与维修专业 综合毕业实践题目：汽车安全气囊的应用研究 学生姓名：吉达军 班级：260710 学号起讫日期：2009年9月—2010年6月 实践地点： 指导教师：张彦明 技术职称：讲师 教研室主任： 系 主 任： 摘 要 当汽车发生碰撞时汽车与汽车或汽车障碍物之间的碰撞称为第一次碰撞，第一次碰撞导致了汽车速度的急剧变化。由于惯性的作用，车上的乘员向前运动，于是发生了车内乘员与车内结构件之间的第二次碰撞，事故中造成乘员伤害的主要原因就是第二次碰撞。为了减轻和避免驾乘人员在第二次碰撞中受到伤害，乘员保护系统的设计目标是在碰撞中利用约束系统（包括座椅、安全带、安全气囊等）避免或减缓乘员与车内结构件碰撞造成的伤害。汽车安全气囊的基本思想是：在发生第一次碰撞后，第二次碰撞前，迅速在乘员和汽车内部构件之间插入一个充满气体的气囊，让乘员“扑”在气囊上，通过气囊上的排气节流阻力吸收乘员的动能，使猛烈的第二次碰撞得以减缓，以达到保护乘员的目的。介绍自行研制的智能式汽车安全气袋控制系统，该系统主要由单片机、传感器、点火电路等组成，使用点火控制算法对汽车加速度信号进行判断，输出点火脉冲。本系统具有体积小、可靠性高、抗干扰能力强、可进行自诊断等特点Abstract The auto safety aerocyst took one kind of auxiliary crew memberrestrains the condition，Has the collision when the automobile protects crew memberseffectiveness more and more to obtain the affirmation，Now the society also more and more is high to the security aerocystrequest。Also more and more is in particular widespread to the intelligentsecurity aerocyst demand，When the automobile has the collision the automobile and theautomobile or between the automobile obstacle collision is called thefirst collision，The first collision has caused the automobile speed rapid change。As a result of inertia function，On vehicle crew member to front movement，Thereupon has had in the vehicle in the crew member and the vehiclebetween the structural element second collision，In the accident creates the main reason which the crew member injures is the second collision。In order to reduce and avoids harnessing while the personnel receivesthe injury in the second collision，The crew protective system design goal is avoids or slows down the injury in the collision using the restraint system which in the crewmember and the vehicle the structural element collision creates。The auto safety aerocyst basic thought is：After has the first collision，Before second collision，Rapidly inserts in the crew member and between the automobile interior component to fill the gas the aerocyst，Let the crew member throw oneself