基于PID算法的车用天然气发动机怠速闭环控制研究  

Vehicle CNG Engine Idle Closed Loop Control Based on PID Algorithm

作　　者：孙晓娜[1,2] 郑轶[1] 王道静[1] 张红光[1] 王欣[1] 田小飞[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]承德石油高等专科学校汽车工程系,河北承德067000

出　　处：《车用发动机》2010年第2期81-84,88,共5页Vehicle Engine

摘　　要：利用自行改装的天然气发动机及自主研发的ECU和转速采集系统,采取增量式PID控制算法对发动机怠速进行单闭环和双闭环控制,并进行了试验验证及控制结果对比分析。台架试验表明:基于PID控制算法的怠速闭环控制有利于怠速的稳定,在单闭环基础上开发的双闭环控制能更有效地降低怠速波动量。With the self-modified CNG engine and self-developed ECU and speed acquisition system,the idle single and double closed loop control were carried out with the incremental PID control algorithm. The experiments were carried out and the control results were analyzed. The results show that the idle closed loop control based on PID control algorithm is helpful for the idle stability. The double closed loop control that is developed from single closed loop control can decrease the idle fluctuation effectively.

关 键 词：天然气发动机 怠速 闭环控制 PID算法 

分 类 号：TK432[动力工程及工程热物理—动力机械及工程]