基于DSP的Fuzzy-PID发动机怠速控制应用  

Application of Fuzzy-PID Control in Idle of Engine Based on DSP

作　　者：刘海朝[1] 孙帅[2] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]郑州电力高等专科学校,河南郑州450004

出　　处：《华北水利水电学院学报》2009年第5期59-61,64,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：为了有效改善发动机怠速工况下经济性与排放性,考虑怠速工况的非线性、时变性和不确定性等因素,采用怠速Fuzzy-PID控制算法,利用Simulink和Stateflow工具对Fuzzy-PID发动机怠速控制系统进行建模仿真.结果表明该Fuzzy-PID控制器,有良好的实时性、抗干扰性和鲁棒性.同时为解决控制系统的实时性能,在硬件设计上采用功能强大的可编程定点DSP控制芯片TMS320F2812,来实现信号处理与控制功能.To improve economic and emission of engine at idle condition,consider nonlinearity,time degeneration,and uncertainty of idle state,Adopting the idle Fuzzy-PID control algorithm,and using the Simulink and the Stateflow tools,Fuzzy-PID engine idle control system was modeled and simulated.Result indicates that Fuzzy-PID controller has fine real-time performance,anti-disturbance,and better robustness.To achieve real-time performance of the control system,the chip TMS320F2812 which has powerful fixed-point programmabe capacity for DSP control,was used to design the hardware of the system,to achieve signal processing and control function.

关 键 词：模糊控制 PID控制 汽油机 DSP 怠速 

分 类 号：TK414.3[动力工程及工程热物理—动力机械及工程] U464[机械工程—车辆工程]