摘要
设计了基于LabVIEW 2010平台实现对汽车电子节气门蝶阀开度的闭环控制系统。系统选用NI的高速M系列USB-6251数据采集板卡采集从节气门位置传感器反馈的电压信号,且输出两路互补PWM信号控制节气门体中的直流电机。结合PID积分分离控制算法,即当节气门蝶阀开度变化较小时采用PID算法,当角度变化较大时采用PD算法。实验证明系统编程简单,人机交互方便,开发周期短,闭环控制效果良好,具有实际的应用价值。
The paper designs the closed-loop control system for automotive electronic throttle valve opening which is based on LabVIEW 2010 platform. System uses NI high-speed M-Series USB-6251 data acquisition board to collect feedback voltage signal from the throttle position sensor and then outputs two complementary PWM signals to control DC motor which is in throttle body. System chooses PID control algorithm with integral separation, that is to say, when the throttle valve opening change is small,system uses PID algorithm, otherwise uses PD algorithm. Experiments show that system has the advantages of simple programming, convenient human-computer interaction, short development cycles and good closed-loop control, so this research has practical value in real life.
出处
《计算机系统应用》
2012年第2期47-50,共4页
Computer Systems & Applications
