摘要
Abstract
In an excavator's working system,the pilot control lever is the direct interface between operator and machine,and its accuracy governs overall human-machine efficiency.To counteract the nonlinear error that appears during lever rotation and improve operation accuracy,a systematic compensation mechanism investigation was conducted.Firstly,the raw error data collected were partitioned into scientifically determined intervals.For each segment,the equation was fitted in Matlab by combining least-squares regression with spline interpolation,yielding a piecewise nonlinear-error compensation model.A 3D lever assembly was created in SolidWorks and imported into ADAMS,where dynamic simulations verify the proposed correction.Results demonstrate that the segmented curve compensation markedly improves the linearity between control angle and spool displacement while the pilot control level rotating and significantly reduces nonlinear errors,confirming the method's feasibility and offering a practical route to higher pilot control lever accuracy.关键词
先导手柄/压盘/操纵角/误差补偿/模型/优化方法Key words
pilot control level/pressure plate/steering angle/error compensation/model/optimization method分类
机械制造
