汽油发动机爆震的原因与避免措施  

Gasoline Engine Knock Reasons and to Avoid Measures

作　　者：衣玉兰[1] 

机构地区：[1]新疆交通职业技术学院,新疆乌鲁木齐831401

出　　处：《装备制造技术》2012年第7期304-306,共3页Equipment Manufacturing Technology

摘　　要：发动机发生爆燃会使发动机动力下降、油耗增加、噪音加大、汽车舒适性变差、排放恶化,同时大大缩短发动机使用寿命。引起发动机爆燃的原因主要是:点火提前角过大、燃烧室过度积碳、发动机温度过高、空燃比不正确等。而现在采取的主要措施是在发动机机体上安装了爆震传感器,对发动机工作情况进行监测,通过ECU来控制点火提前角,从而控制爆震的了发生。The engine deflagration will make the loss of engine power, fuel consumption increase, noise, the more comfort becomes poor, car emissions deterioration, and at the same time greatly shorten the engine service life. Cause engine knocking the main reasons are： ignition advance angle too big, combustion excessive carbon, engine temperature is too high, air-fuel ratio is not correct, etc. And now the major measures taken in the engine block is installed on the knock sensor, the engine operation monitoring, through the ECU to control advanced ignition Angle, so as to control the detonation occurred.

关 键 词：爆燃 点火提前角 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]