汽车发动机电动增压技术研究

Research of the Electric Supercharger Technology of Vehicle Engine

首先基于文献调研的基础上,对电动增压技术的研究目的、分类、结构布置、和发展现状进行了综述和分析。然后,主要针对电驱动压气机增压应用技术,分析了电动增压器的安装位置及其影响,并对其电源和电机的选型及影响进行了分析。最后,为了提高增压压力的响应速度并同时保证系统的稳定性,提出了一个前馈和反馈相结合的闭环控制策略,并基于所建立的GT-POWER和Matlab/Simulink联合仿真平台,验证了该控制策略的有效性,仿真结果显示系统的瞬态响应性能显著提高,稳态误差也保持在一个合理范围内。

First, this article reviews the background, function, classification, package, and the current de- velopment situation of the electric supercharger. Focus on and analyse the package location and its effect based on the electrically driven compressor, and the influence of the battery and motor is also analysed. The response time is decreased and the system stability is enhanced due to the control strategy including the feed-forward and back-forward control of the speed of the electric supercharger; At last, the coupled simu- lation platform is built based on the software GT-POWER and Matlab/Simulink to realize control strategy, and the simulation results verify that the transient response is much improved and the steady error is acceptable.