文档介绍：汽车安全气囊摘要汽车安全气囊是一种被动安全系统装置。通俗简单的就是说, 保护不是主动的, 只有在发现碰撞之后, 这个系统才会起作用。安全气囊主要由传感器、微处理器、气体发生器和气囊等部件组成。传感器和微处理器用以判断撞车程度, 传递及发送信号; 气体发生器根据信号指示产生点火动作, 点燃固态燃料并产生气体向气囊充气, 使气囊迅速膨胀, 气囊容量约在(50-90)L 。同时气囊设有安全阀, 当充气过量或囊内压力超过一定值时会自动泄放部分气体, 避免将乘客挤压受伤。安全气囊所用的气体多是氮气或一氧化碳。汽车安全气囊是在发生碰撞后,非常短的时间内, ECU 发出点火指令,气体发生器起爆释放气体,气袋重启后冲破 cover 而形成一个袋体, 使像前冲的乘员不至于撞到方向盘或者仪表板或者其他汽车零部件上。其实就是一个用能量制约能量的过程,通俗说就是以暴制暴,所以说是被动的。气囊起爆后是一个袋体(就像一个充气的气球) ,能抵消很大一部分由于碰撞而对司乘人员向前的冲量和能量,从而达到保护作用。关键词:碰撞传感器缓冲气囊气体发生器控制块(电脑) Summary The automotive airbag isa passive safety system devices. Popular simple to say, protection is not active, only after the discovery of the collision, the system will work. Airbag sensors, microprocessors, gas generator and air ponents. Sensors and microprocessors used to determine the extent of the crash, transmission, and sends a signal; gas generator according to the signal indication ignition action, to ignite the solid fuel and the production of gas to the air bag inflated, the airbag rapid expansion, airbag capacity of about (50-90) L,. The airbag has a safety valve will automatically discharge the part of the gas, to avoid to squeeze the passengers were injured when over-inflated or intraluminal pressure exceeds a certain value. Used in airbag gas is nitrogen or carbon monoxide. The automotive airbag in the event ofa collision, a very short period of time, the ECU issue ignition instructions, the gas generator initiation to release the gas After rebooting the airbags to break through the cover and the formation ofa bag body, to make like the pediment of the crew does not hit the steering wheel or on the dashboard or other car parts. Is actually a process of energy with energy constraints, popular is violence with violence, so passive. Airbag deployment, a bag body (like an inflated balloon), to offset a large part due to collision and passengers forward momentum and energy, so as to achieve a protective effect. Keywords: collision sensor buffer airbag gas generator control block (computer)