混动车用高效汽油机技术研究

Research on High Efficiency Gasoline Engine Technology for Hybrid Vehicles

阐述当前发展高效率混动车用汽油机的必要性,解读当前内燃机应用燃油车向混动车发展的趋势。分析当前市场丰田混动系统、本田双电机混动系统、日产的混动、大众系列和国产高效发动机的特点。总结当前先进发动机所应用的米勒循环、缸内直喷、稀薄燃烧、可变压缩比等技术,并说明不同技术对发动机带来的发动机热效率、机械磨损、燃油消耗、排放污染等方面的影响和不同技术组合使用的典型案例。

This article elaborates on the necessity of developing high-efficiency gasoline engines for hybrid vehicles, and interprets the current trend of using internal combustion engines for fuel vehicles to develop hybrid vehicles. Analyze the characteristics of Toyota hybrid system, Honda dual motor hybrid system, Nissan hybrid, Volkswagen series, and domestically produced high-efficiency engines in the current market. Summarize the technologies currently used in advanced engines, such as Miller cycle, direct injection, lean combustion, and variable compression ratio, and explain the impact of different technologies on engine thermal efficiency, mechanical wear, fuel consumption, emission pollution, and typical cases of different technology combinations.