High-performance tri-redundancy steering engine based on single-channel dual-processor structure

Abstract

The invention belongs to the field of servocontrol, realizes a high-performance tri-redundancy steering engine based on a single-channel dual-processor structure, and relates to an embedded type control module taking a high-speed digital processor (DSP) as a core and a redundant configuration and a management proposal thereof. The single-channel hardware of the steering engine mainly comprises a forestage processor (FCP) 09, a secondary processor (SCP) 10, a fault isolation module 21, an LVDT displacement sensor 18, a current sensor 24, an actuating cylinder 20, a data cross transmission channel (CCDL) 23, and the like. Compared with the prior steering loop mode comprising a flight control computer and an actuator, the high-performance tri-redundancy steering engine reduces the workload of a flight control computer and completes control plane closed-loop control and redundancy management task inside the redundancy steering engine, thereby eliminating performance coupling between the flight control computer and the steering engine. Moreover, by adopting strategies such as multi-loop control, dual-processor mutual monitoring and data cross transmission, the steering engine effectively improves control performance and reliability.

Description

technical field [0001] The invention belongs to electromechanical servo control technology, and relates to a high-performance triple-redundancy steering gear with a single-channel dual-processor structure. Background technique [0002] The servo actuation system is the executive part of the aircraft control system, which is used to realize the position control of the aircraft rudder surface, and is one of the important subsystems of the flight control system. The development of high-performance and high-reliability servo steering gear is of great significance for improving the performance of the servo actuation system and even the entire flight control system. [0003] Making full use of digital processing technology and redundancy technology to develop towards modularization, intelligence and high reliability is an inevitable trend of flight actuation control. At present, the redundant steering gear has been widely used. The usual structure is based on the flight control c...

AI Technical Summary

Problems solved by technology

The disadvantages of this rudder circuit structure are:

Changes in the performance parameters or configuration of the steering gear will inevitably lead to modification of the software and hardware of the flight controller. Similarly, changes in the parameters of the flight controller will also affect the performance of the steering gear, and the modularization of the steering gear cannot be realized.

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