混动发动机的爆震成因及措施分析

Analysis of Knock Causes and Measures for Aspirated Hybrid Engines

本文介绍了汽油发动机爆震的形成机理,阐述了发动机燃烧过程和影响爆震的主要因素。相比于普通汽油发动机,混动发动机更注重热效率和燃油经济性,主要使用米勒循环和高压缩比等技术路线,发动机爆震问题也有新特点,需要采取针对性的解决方案,从燃烧机理上进行控制和解决。

The article introduces the formation mechanism of gasoline engine knock,elaborates on the main combustion process of the engine and the main factors affecting knock.Compared to regular gasoline engines,hybrid specific engines place more emphasis on thermal efficiency and fuel economy,mainly using technology routes such as Miller cycle and high compression ratio.The engine knock problem also has new characteristics,requiring targeted solutions to control and solve it from the combustion mechanism.