液压挖掘机神经网络模糊节能控制系统的研究

Study on Saving-energy Control System Based on NN-Fuzzy-PID in Hydraulic Excavator

通过对液压挖掘机功率匹配的分析,提出了将泵的功率曲线设定在发动机的功率曲线之上的功率匹配方法,研究了神经网络模糊比例-微分-积分(NN-Fuzzy-PID)控制技术在挖掘机节能控制系统上的应用.试验结果证明了提出的节能方法和 NN-Fuzzy-PID 控制算法在挖掘机节能控制系统上的可行性.NN-Fuzzy-PID 控制器能根据不同的环境和作业工况进行参数自调整,具有自学习的功能.研究结果为进一步研究开发智能化挖掘机提供了依据.

A new method of saving-energy in hydraulic excavator has been put forward in the paper,which is that the power of pump is set upon that of engine,according to analysis of power match of excavator.This pa- per also studies the application of scheme of NN-PID in saving-energy control system.The experimental result shows that the method of saving-energy and the scheme of NN-Fuzzy-PID are efficient for saving-energy con- trol system.