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Received:November 21, 2013 Revised:December 13, 2013
Received:November 21, 2013 Revised:December 13, 2013
中文摘要: 利用GT-Power软件建立了某无人机二冲程发动机直喷仿真模型，通过实验获取缸压曲线与仿真结果进行对比，验证了仿真模型的正确性. 基于验证的直喷系统仿真模型，分析了高低空环境下的点火正时对气缸最高压力、扭矩、燃油消耗率、排气温度和NOX排放量的影响规律. 仿真结果可优化无人机直喷系统的点火正时参数，为在高低空环境下提高发动机性能提供理论依据.
中文关键词: 无人机发动机 GT-Power软件 点火正时 仿真分析
Abstract:In this paper, the simulated model of an GDI system was created for UAV by GT-Power. This cylinder pressure curves obtained by experiment and simulation results were compared to verify the correctness of the simulation model. The impact of the outbreak of the cylinder pressure, torque, fuel consumption, exhaust gas temperature and NOX emissions with ignition timing was analyzed in high-low altitude based on proved GDI system simulation model. The results of simulation can optimize ignition timing parameters of GDI system for UAV, and provide theoretical guidance to improve engine performance in high-low altitude.
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引用文本：
朴雅庆,吴亚锋.直喷系统建模及点火正时仿真分析.计算机系统应用,2014,23(7):231-236
PIAO Ya-Qing,WU Ya-Feng.Modeling of Gasoline Direct Injection System for UAV and Simulation Analysis of Ignition Timing.COMPUTER SYSTEMS APPLICATIONS,2014,23(7):231-236
朴雅庆,吴亚锋.直喷系统建模及点火正时仿真分析.计算机系统应用,2014,23(7):231-236
PIAO Ya-Qing,WU Ya-Feng.Modeling of Gasoline Direct Injection System for UAV and Simulation Analysis of Ignition Timing.COMPUTER SYSTEMS APPLICATIONS,2014,23(7):231-236
