无凸轮式配气型线优化设计及发动机性能仿真研究  

Optimization Design of Cam-less Valve Profiles and Simulation of Engine Performance

作　　者：张鹏博 ZHANG Peng-bo(Wuxi Institute of Technology,School of Automobile and Transportation,Wuxi 214121,China)

机构地区：[1]无锡职业技术学院汽车与交通学院,无锡214121

出　　处：《内燃机与配件》2021年第1期5-6,共2页Internal Combustion Engine & Parts

摘　　要：本文基于AVL-boost建立一维发动机仿真模型,对采用无凸轮式配气型线的发动机整机性能进行数值模拟。仿真结果表明:采用无凸轮式配气型线可以根据不同工况灵活调整气门升程及相位,能够有效降低发动机部分负荷工况下的换气损失,改善发动机的动力性及燃油经济性,为无凸轮式配气机构的控制应用提供了理论依据。In this paper,a one-dimensional engine simulation model is established based on AVL-boost,and the engine performance applying cam-less valve profiles is numerically simulated.The results indicated that the valve lift and phase can be adjusted flexibly according to different working conditions by using the cam-less valve profiles.Under part load condition,the ventilation loss can be effectively reduced.Besides,the power and fuel economy performance can be improved.This study provides a theoretical basis for the control application of cam-less valve train.

关 键 词：发动机 无凸轮式配气型线 数值模拟 整机性能 

分 类 号：U464.134[机械工程—车辆工程]