基于单片机的电子节气门PID控制系统  

Electronic Throttle PID Control System Based on Single Chip Microcomputer

作　　者：郑意[1] 万钧力[1] 程时润 刘浩[1] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2014年第6期94-97,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：宜昌市科学技术研究与开发项目(A09302-33)

摘　　要：以Bosch公司DV-E5型节气门为控制对象,基于PID算法完成了控制系统的软硬件设计.系统采用AT89C51单片机作为主控单元,选用LMD18200芯片驱动节气门中的直流电机,同时以PCF8591作为AD转换芯片,采用LCD1602显示动态控制参数,并用C语言编写了系统控制软件,在Proteus上对主要软件模块进行了仿真,搭建了节气门PID控制实验平台,完成了对节气门开度位置控制的实验和测试,实验结果表明:系统阶跃响应时间约300ms,稳态误差小于1%,滞后和超调不明显.Taking Bosch company DV-E5 type throttle as control object,the hardware and software of the con- trol system have been designed based on PID control algorithm. The system uses microcontroller TT89C51 as the main control unit, using chip LMD18200 to drive DC motor in the throttle; meanwhile, using PCF8591 as the AD conversion chip, using LCD1602 to display the dynamic control parameters. The system control soft- ware has been written by C language. The main software modules have been simulated on Proteus; a PID con- trol experimental platform of the electronic throttle has been built. Test and the experiments of the opening degree position control on the throttle have been completed. The experimental results show that the system step response time is about 300ms; the steady--state error is less than 1%; hysteresis and overshoot is not obvious.

关 键 词：电子节气门 90C51单片机 PID控制 

分 类 号：TM273[一般工业技术—材料科学与工程]