基于卡尔曼滤波的模糊PID阀芯控制研究

打开文本图片集

中图分类号：TP273 文献标识码：A 文章编号：2095-5553（2025）12-0261-07

Abstract：Toaddresscontrol issues suchasresponse lag，overshoot，and susceptibilityto interference inthe spoolcontrol of electro-hydraulic proportional valves，the working principleof thevalvewasanalyzed，anda fuzzyPIDcontrol strategy basedo the Kalman filteralgorithm wasproposed．Building upon the traditional PIDcontrolapproach，this strategy adaptivelyadjustedforthedead-bandcharacteristicsofproportional valvesand filteredout external disturbances.Simulation resultsshowedthatthefuzyPIDcontrolstrategyincorporating theKalmanfilterachieved thefastestresponse spdand the smallest overshootamong the tested methods.Specifically，itexhibited adelaytimeofO.28sandamaximum overshootof zero.Tovalidatethese findings，atest bench was constructed，anda sinusoidalsignal tracking test wascariedout.The resultsconfirmedthattheproposedcontrol strategyofered fasterresponsetimesand strongerantiinterferencecapablities compared toboth traditionalPIDandfuzzy PIDcontrol methods.The maximum signal tracking eror was limited to just （204号 2.5% ，and the output flow curve remained smooth，reflecting improved system stability and performance.

Keywords：electro-hydraulic proportional；fuzzy PIDcontrol;Kalman filter algorithm；anti-interference

0 引言

械的高效、节能、低碳、环保要求日益提高，电液比例系统具有抗污染能力强、性价比高等特点，在大型拖拉机以及其他农机装备中广泛应用。（剩余10691字）