汽车发动机的爆震分析与控制

摘要

本文对发动机爆震现象的产生原因、检测手段和利用电子控制系统防止爆震的方法进行了剖析研究.简述了电控系统的组成、控制原理和控制软件.电子控制使汽车发动机的动力性能、经济性和排放污染得到了很大的改善.%This paper analyses the cause of knock phenomena of vehicle engine,its detection method and the way to avoid it by Electronic Control Unit (ECU) for vehicle engines.A brief discussion about the ECU structure,control principle and software are presented.Through the electronic control,the dynamic performance,fuel economy,and exhaust emission of the engine are considerably improved.