【摘要】 阐述了顺序多点喷射天然气发动机电控喷射系统的构成及工作原理,并提出了一种新型的空燃比控制器。该控制器将智能控制算法和比例积分(PI)控制算法相结合,通过仿人智能算法实现控制参数的自适应调整。在发动机电控喷射系统中,利用宽域空燃比传感技术,采用新控制器,通过调整喷射脉宽控制发动机的空燃比,在发动机瞬态工况中取得了较好的控制效果。更多还原

【Abstract】 The electrically controlled sequential multiple injection system of CNG engine is presented in detail in this paper,also a new type of AFR controller is highlighted.Integrating intelligent and PI control arithmetic,we obtained a fuzzy hybrid controller.The parameters of new controller can be adjusted on line based on the artificial intelligent arithmetic.By using widerange airfuel ratio sensor,this controller has the function of closeloop feedback control on engine airfuel ratio by adjusting the injection pulse width.The test result of transient working condition shows that it has better performance.更多还原