阿特金森循环对整车油耗影响的研究

摘要

Atkinson cycle cam profile matching with geometric compression ratio is an effective way for energy saving and emission reduction. Along with the development of hybrid power, enging's performance could be improved after adopting Atkinson cycle. Atkinson cycle engine is more suitable for the future vehicle matching requirements. Based on AVL Boost engine simulation model, Atkinson cycle profile is designed. Combined with the vehicle working conditions provided by AVL Cruise vehicle simulation, the improvement of fuel consumption is predicted. The influence of Atkinson cycle on vehicle fuel consumption is preliminarily explored.%阿特金森循环凸轮型线配合较高的几何压缩比是一种行之有效的节能减排手段。而且随着混合动力的发展，采用阿特金森循环后发动机低速外特性的不足也可得到弥补。可以说，阿特金森循环发动机更适合于未来的整车匹配需求。基于AVL_Boost整机仿真模型设计了阿特金森循环型线，并结合AVL_Cruise整车仿真提供的整车工况点对整车油耗改善情况进行了预测。初步探讨了阿特金森循环对于整车油耗的影响。