Current reconstruction method of redundancy steering engine

Abstract

The invention discloses a current reconstruction method of a redundancy steering engine, and belongs to the technical field of flight control. The redundancy steering engine is composed of a multi-redundancy motor and a mechanical servo valve; the multi-redundancy motor is provided with multiple control channels, and each channel receives a current signal of a flight control system and outputs a current to control the mechanical servo valve simultaneously; each channel is provided with a current module monitoring parameter and a direct driving valve model parameter; a current model monitors whether current output of the corresponding channel is normal, and if practical current output is inconsistent with a current instruction, it is determined that the channel has a fault; and if one of the channels has the fault, other channels adjust the current output gain, so that the whole servo system is not degraded. The current gain of the channels is adjusted simply, so that the control performance of the system is not degraded under the condition that the individual channel has the fault. The method is easy to realize, and can realize expected functions comprehensively according to practice and application.

Description

technical field [0001] The invention belongs to the technical field of aircraft flight control, and in particular relates to a current reconfiguration method of a redundant steering gear. Background technique [0002] In the prior art, the servo steering gear that directly drives the valve drives the servo valve through current to control the movement of the actuator of the servo system. The current of each channel drives the servo valve at the same time. When some of the channels fail, the steering gear The dynamic performance will produce a relatively large degradation, which will affect the control accuracy of the entire control system. [0003] In order to ensure that the control performance of the servo system is not degraded under the condition of individual channel faults, measures must be taken to dynamically adjust the channel current gain. Contents of the invention [0004] Purpose of the present invention: In order to solve the above problems, the present inven...

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Problems solved by technology

[0002] In the prior art, the servo steering gear that directly drives the valve drives the servo valve through current to control the movement of the actuator of the servo system. The current of each channel drives the servo valve at the same time. When some of the channels fail, the steering gear The dynamic performance will produce a relatively large degradation, which will affect the control accuracy of the entire control system

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