A Design Method of Electric Steering Gear Using Pure Fuzzy and Fuzzy PID Compound Control

Abstract

The invention discloses an electric steering engine design method adopting a compound control of pure fuzzy and fuzzy PID. The electric steering engine design method adopting compound control of pure fuzzy and fuzzy PID comprises steps of measuring an angle position signal of the steering engine to perform feedback, comparing the angle position signal with an input steering engine signal to form an error signal, designing a pure fuzzy control rule database through different magnitudes of errors to realize automatic tracking on basic input signals by the electric steering engine, forming an error differential term through an angular velocity signal measuring rotation of the steering engine calculating, generating an error differential integral term through calculation, constituting PID through the error, the error differential and error integration, designing a fuzzy regulation rule database of a PID control coefficient through the error and the error differential to realize fuzzy dynamic regulation of the control coefficient in the fuzzy PID control, and compounding a pure fuzzy control rule and the fuzzy PID control rule in order to improve the fastness of the electric steering engine and realize fast tracking of the input order of the steering engine. The beneficial effect of the electric steering engine design method is that the electric steering engine designed by the invention has a better fast response compared with a traditional electric steering engine.

Description

technical field [0001] The invention belongs to the technical field of steering gear design and manufacture, and relates to an electric steering gear design method using pure fuzzy and fuzzy PID compound control. Background technique [0002] The steering gear is one of the most widely used components in the industrial field, mainly used as the actuator of the system. Such as high-speed flying missiles, airplanes, unmanned aerial vehicles, and underwater vehicles, etc., the flight and motion control systems need to use steering gear as the actuator to drive the rudder surface of the control device, thereby changing the movement of the aircraft in the air attitude and direction. The steering gear designed by the traditional PID feedback control method has the advantages of stability, reliability and mature technology. However, with the development of science and technology, the control system has higher and higher requirements for the performance index of the steering gear,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a design method of electric steering gear using pure fuzzy and fuzzy PID compound control, which solves the problem that the traditional electric steering gear cannot adapt to the modern control system and cannot achieve fast response

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