Hybrid redundancy configuration-based control architecture of fly-by-wire flight control system

Abstract

The invention relates to a hybrid redundancy configuration-based control architecture of a fly-by-wire flight control system. A control and sensing assembly, an actuator and a four-redundancy servo controller are connected with form a servo loop closed-loop control. The four-redundancy servo controller is connected with a three-redundancy flight control computer, and the two-way cross transmissionof data instructions is carried out. Therefore, the closed-loop control of a fly-by-wire inner loop and an automatic driving outer loop is realized. The flight control computer of each redundancy acquires the data of the four-redundancy servo controller at the same time and carries out monitoring and voting. The servo controller of each redundancy acquires the data of a three-redundancy flight control computer at the same time and carries out monitoring and voting. The three-redundancy flight control computer is connected with a comprehensive avionics management system, so that the data signal interaction of the flight control system is realized. A hybrid redundancy configuration is adopted by a control framework, so that the advantages of clear configuration, simple structure, complete functions, strong expandability, high safety and reliability, and good maintainability are realized.

Description

technical field [0001] The invention relates to the technical field of flight control system design, in particular to a fly-by-wire flight control system control architecture with hybrid redundancy configuration. Background technique [0002] At present, the domestic fly-by-wire flight control system mainly adopts a four-redundancy system configuration, and its common control system architecture is as follows: figure 1 As shown, and based on the improved design of this control architecture, the core of the control system architecture is the use of a four-redundancy flight control computer. The flight control computer integrates analog / discrete signal processing, signal redundancy management and main control Law calculation, actuator servo control, backup control and other modules; in this control system architecture, the flight control computer realizes the control functions of actuator servo control, fly-by-wire control inner loop and automatic driving outer loop. Due to t...

AI Technical Summary

Problems solved by technology

Due to the characteristics of high concentration of flight control computer composition and functions, it is also easy to lead to increased complexity of flight control computer composition, reduced reliability, poor fault detection and positioning, and poor maintainability.

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