基于iSIGHT的Atkinson循环汽油机配气正时优化  

Atkinson Cycle Gasoline Engine Valve Timing Optimization based on iSIGHT

作　　者：杜爱民[1] 周晨夏 万玉[1] 李国强[1] 

机构地区：[1]同济大学汽车学院,上海201800

出　　处：《小型内燃机与摩托车》2013年第1期32-37,共6页Small Internal Combustion Engine and Motorcycle

摘　　要：以4G18发动机为研究对象,通过对配气机构和压缩比的改进,使其满足Atkinson循环要求。运用iSIGHT集成BOOST联合仿真,对进排气正时进行优化,使得整机经济性能得到显著提高,最低油耗仅为227.0 g.(kW.h)-1,大大低于原机。The valve mechanism and compression ratio of4G18 gasoline engine have been changed to meet the requirements of Atkinson cycle. With the use of iSIGHT integrated BOOST simulation to optimize the intake and exhaust timing, the economic performance improved significantly compared with the original engine, the minimum fuel consumption is only 227.0 g/（ kW . h - 1 ）.

关 键 词：Atkinson循环 汽油机 ISIGHT 配气正时 优化设计 

分 类 号：TK413.4[动力工程及工程热物理—动力机械及工程]