摘要
基于AVL BOOST软件建立某六缸发动机模型,仿真分析了进气正时、排气正时、喷油提前角对发动机性能的单因素影响,绘制了三因素影响曲线图;利用正交试验方法找到了该发动机各因素显著性影响顺序及最佳的进、排气正时与喷油提前角组合以优化发动机性能,对燃油经济性进行了点估计及验证;经过仿真分析与优化,结果表明:发动机的经济性提升了3.89%,动力性提升了3.72%。
Based on the AVL BOOST software, a six-cylinder engine model was established, the singleeffect of intake timing, exhaust timing and fuel injection advance angle on the engine performance wasanalyzed, then the graphs of the three factors' influence were drawn; the order of the factors significant-ly affecting the engine and the best combination of intake and exhaust timing and fuel injection advanceangle were found by the orthogonal experiment method to optimize the engine performance. Finally, thefuel economy was point-estimated and verified. Through simulation analysis and optimization, the re-sults show the engine's economy is increased by 3.89%, the power performance is increased by 3.72%.
出处
《湖北汽车工业学院学报》
2015年第4期31-35,共5页
Journal of Hubei University Of Automotive Technology
基金
湖北省教育厅项目(CXY2009B034
T201005
湖北省科技厅项目(2012XTZX04)
关键词
配气正时
喷油提前角
正交设计
性能优化
valve timing
fuel injection advance angle
orthogonal design
performance optimization