基于分段曲线补偿的先导手柄非线性误差优化方法OA

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.