增程器发动机性能开发仿真分析

为开发增程专用发动机，应用GT-POWER 软件建立某2.0 L 汽油发动机性能仿真模型。通过热力学仿真 计算分析，优化气门升程曲线和配气相位，实现阿特金森循环；预测发动机功率、扭矩、油耗等性能指标，提出发 动机配气相位推荐方案。结果表明，该模型可为发动机正向开发及性能仿真分析提供技术支持。

Simulation Analysis on Performance Development of Range Extender Engine

In order to develop a special extended-range engine, the performance simulation model of a 2.0 L gasoline engine was established by using GT-power software. Through thermodynamic simulation calculation and analysis, the valve lift curve and valve timing are optimized to realize Atkinson cycle. The performance indexes such as engine power, torque and fuel consumption are predicted, and the recommended scheme of engine valve timing is put forward. The results show that the model can provide technical support for engine forward development and performance simulation analysis.