汽油机燃用E10的瞬态空燃比控制策略研究  

Research on Transient Air-fuel Ratio Control Strategy of Gasoline Engine Fueled with E10

作　　者：刘功兴 LIU Gong-Xing(Transportation Cause Development Center of Liaoning Province,Shenyang Liaoning110003,China)

机构地区：[1]辽宁省交通运输事业发展中心,辽宁沈阳110003

出　　处：《机电产品开发与创新》2022年第1期109-111,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：受新冠肺炎疫情的影响,人们出行方式发生变化,私家车保有量大幅增加,引发了环境污染和能源短缺问题日益严重。在汽油机结构未改变的情况下,E10作为替代燃料被广泛使用。空燃比是影响汽油机动力性、燃油经济性和污染物排放的重要因素。因油膜效应影响瞬态空燃比的精准控制,本文建立了带燃油补偿器的供给模型,采用模糊自整定PID控制方法和PID控制方法分别对瞬态工况下空燃比进行仿真,得出模糊自整定PID控制器对发动机燃用E10的空燃比的控制稳定性更好。Due to the COVID-19,people's travel patterns have changed,and private car ownership has increased dramatically,causing increasing environmental pollution and energy shortages.In the case of unchanged gasoline engine structure,E10 is widely used as an alternative fuel.Air-fuel ratio is an important factor affecting power performance,fuel economy and pollutant emission of gasoline engine.Because the oil film effect affects the precise control of the transient air-fuel ratio,a supply model with fuel compensator is established in this paper.The fuzzy self-tuning PID control method and PID control method are used to simulate the air-fuel ratio under the transient condition,and it is concluded that the fuzzy self-tuning PID controller has better control stability of the air-fuel ratio when the engine burns E10.

关 键 词：乙醇汽油 空燃比 控制策略 模糊自整定PID 

分 类 号：TK01[动力工程及工程热物理]