凸轮驱动式液压可变气门机构进气充量模型研究  

Study on Air Charge Model of Cam-driven Hydraulic Variable Valve Mechanism

作　　者：段伟 牛贝妮 Duan Wei;Niu Beini(Great Wall Motor Co.,Ltd.,Baoding City,Hebei Province 071000,China;FCA Powertrain Technologies(Shanghai)R&D Co.,Ltd.,Shanghai 201807,China;Shanghai Hong Jing Intelligent Drive Information Technology Co.,Ltd.,Shanghai 201804,China)

机构地区：[1]长城汽车股份有限公司,河北省保定市071000 [2]菲亚特克莱斯勒动力科技研发(上海)有限公司,上海市201807 [3]上海宏景智驾信息科技有限公司,上海市201804

出　　处：《农业装备与车辆工程》2022年第12期37-42,共6页Agricultural Equipment & Vehicle Engineering

基　　金：吉林省科技发展计划项目(20200403150SF)。

摘　　要：凸轮驱动式液压可变气门机构可以降低泵气损失、实现米勒循序和提高燃烧效率,具有较好的应用前景,但也对发动机进气充量模型的准确性和响应性提出更高的要求。基于此,介绍了一种凸轮驱动式电液可变气门机构及其工作模式,并在不同的工作模式下建立了相对应的进气充量预估模型,验证了此充量模型的准确性。The cam-driven hydraulic variable valve mechanism has a good application prospect with low pumping loss and high thermal efficiency in Miller combustion cycle.But it is not enough for now,the more accurate and responsive air charge model is required.A new intake air charge model is setup by a cam-driven electro-hydraulic variable valve mechanism that works in different modes,the accuracy of the model has been verified.

关 键 词：直喷汽油机 液压可变气门机构 凸轮驱动 充量预估模型 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]