2results about How to "Improve system adaptability" patented technology

The application provides a signal carding method and system for control system reconstruction, which comprises the following steps: obtaining multi-source engineering files of a control system to be reconstructed and extracting signal related information; performing consistency comparison on overlapping information from different files for the same object, and recording inconsistent available information as inconsistent information; integrating available information sets based on the corrected inconsistent information and the information passed by the consistency comparison; analyzing the available information sets based on preset identification rules, reversely identifying a complete signal set for the reconstruction design, and generating corresponding attribute information sets for each signal to form a final I / O list for the reconstruction. Through the establishment of a systematic reverse carding process and signal identification rules for analog / relay systems, the application solves the problems of incomplete, inaccurate and inconsistent signal carding with the state of the art in the in-service reconstruction project, and provides an accurate and reliable data basis for subsequent reconstruction design.

The present application relates to a kind of active hinged angle tracking control method based on sinusoidal trajectory of articulated vehicle, belong to vehicle intelligent control field.It aims to solve the problem of insufficient tracking accuracy caused by the step change of articulated angle when traditional articulated vehicle turns, the influence of nonlinear friction of hydraulic system and the risk of vehicle instability.The present application proposes: through path planning and cubic spline interpolation to generate smooth trajectory, the expected articulated angle is calculated through coordinate system conversion and kinematics model;Adopt Fourier series to decompose articulated angle into N order sine component, construct continuous and smooth bionic trajectory, eliminate step mutation;Based on articulated angle-hydraulic cylinder piston geometric constraint model, design adaptive tracking differentiator, robustly extract displacement high-order derivative through dynamic parameter adjustment mechanism, inhibit noise interference;Develop time-varying sliding mode controller, combine ATD output signal with asymmetric hydraulic cylinder model, use saturation function to suppress nonlinear friction buffeting, realize high-precision tracking of piston displacement.