基于MBC工具箱对汽油机进排气CVVT的优化  

The Optimization of Inlet and Exhaust CVVT of a Gasoline Engine Based on MBC Toolbox

作　　者：徐曼 孙建军 许杰 方会咏 刘义强 柳启元 XU Man;SUN Jianjun;XU Jie;FANG Huiyong;LIU Yiqiang;LIU Qiyuan(Ningbo Geely Royal Engine Parts Co.,Ltd.,Ningbo,Zhejiang,315000,China)

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315000

出　　处：《小型内燃机与车辆技术》2021年第6期29-33,共5页Small Internal Combustion Engine and Vehicle Technique

摘　　要：CVVT技术,即连续可变气门正时技术(Continuously Variable Valve Timing),能够对发动机进排气门的开启、关闭时间以及进气量的多少进行连续调节,从而提高发动机功率,优化转矩曲线,提升发动机的动力性和经济性,减少污染物的排放。主要结合某1.5 L自然吸气汽油发动机,基于Matlab软件的MBC工具箱(Model_Based Calibration Toolbox)论述利用该工具箱选取最佳CVVT组合的过程以及CVVT优化前后对发动机性能、油耗以及排放等的影响,为发动机的CVVT标定提供新的途径。CVVT technology,a variable valve timing technology(Vairable Valve Timing),can adjust the valve opening,closing time and intake volume of the engine continuously,thus increasing the engine power,optimizing the torque curve,and thus improving the power and economy of the engine,as well as reducing pollutant emissions.In this paper,combined with a 1.5 L naturally aspirated gasoline engine and based on the MBC toolbox(Model_Based Calibration Toolbox),we discuss the process of selecting the best combination of CVVT by the toolbox and the influence of CVVT optimization on engine performance,fuel consumption and emissions,which provides a new method for CVVT calibration.

关 键 词：CVVT技术 MBC工具箱 动力性 经济性 发动机标定 

分 类 号：TK411.3[动力工程及工程热物理—动力机械及工程]