阅读说明：本技术 一种平尾伺服分系统故障综合方法 (Horizontal tail servo subsystem fault comprehensive method ) 是由 周成 李育挺 李立 何战斌 唐丹丹 张天钧 于 2021-09-01 设计创作，主要内容包括：本发明涉及分布式系统余度管理和容错技术,提供了一种平尾伺服分系统的故障综合方法,针对现有技术对平尾伺服分系统的故障情况反应不够全面的问题,包括：步骤1、根据单侧(左侧及右侧)平尾的故障情况,分别对单侧平尾机械-液压故障数进行综合。步骤2、分别对单侧平尾电气故障数进行综合；步骤3、根据单侧平尾机械-液压故障数及单侧平尾电气故障数,分别对单侧平尾伺服故障数进行综合；步骤4、根据单侧平尾伺服故障数,对平尾伺服分系统故障数进行综合。本发明适用于使用磁通综合DDV平尾舵机的各种飞机。(The invention relates to a redundancy management and fault tolerance technology of a distributed system, and provides a fault comprehensive method of a horizontal tail servo subsystem, aiming at the problem that the prior art does not fully react to the fault condition of the horizontal tail servo subsystem, the method comprises the following steps: step 1, respectively integrating the mechanical-hydraulic fault number of the single-side horizontal tail according to the fault conditions of the single-side (left side and right side) horizontal tail. Step 2, respectively integrating the single-side horizontal tail electrical fault numbers; step 3, respectively synthesizing the single-side horizontal tail servo fault numbers according to the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number; and 4, synthesizing the failure number of the horizontal tail servo subsystem according to the failure number of the horizontal tail servo subsystem on the single side. The invention is suitable for various airplanes using the flux comprehensive DDV horizontal tail steering engine.)

1. A horizontal tail servo subsystem fault synthesis method is characterized by comprising the following steps:

step 1, respectively integrating mechanical-hydraulic fault numbers of the single-side horizontal tail according to the fault condition of the single-side horizontal tail;

step 2, respectively integrating the single-side horizontal tail electrical fault numbers;

step 3, respectively synthesizing the single-side horizontal tail servo fault numbers according to the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number;

and 4, synthesizing the failure number of the horizontal tail servo subsystem according to the failure number of the horizontal tail servo subsystem on the single side.

2. The method according to claim 1, wherein in step 1, the unilateral flat tail is 4-redundancy control.

3. The method according to claim 1, wherein in the step 1, the method for integrating the number of the single-side horizontal tail mechanical-hydraulic faults is as follows:

according to the fault numbers of the single-side horizontal tail SOV1 and the horizontal tail SOV2, the single-side horizontal tail mechanical-hydraulic fault number is obtained comprehensively according to the following table:

TABLE 1 number of single-sided horizontal tail mechanical-hydraulic failures

4. The method of claim 3, wherein the method for integrating the number of single-sided flattail SOV1 and SOV2 faults is as follows:

respectively collecting horizontal tail SOV1 signals of 4 redundancy channels of a single-side horizontal tail, wherein when the signal is '0', the signal indicates that the horizontal tail SOV1 of the redundancy channel is in fault, and when the signal is '1', the signal indicates that the horizontal tail SOV1 of the redundancy channel is normal; the number of the single-side horizontal tail SOV1 faults is the number of redundant channels of the single-side horizontal tail SOV1 signal faults; the method comprises the steps of respectively collecting flattail SOV2 signals of 4 redundancy channels of a single-side flattail, indicating that the flattail SOV2 of the redundancy channel has a fault when the signal is 0, indicating that the flattail SOV2 of the redundancy channel is normal when the signal is 1, and indicating that the number of the faults of the single-side flattail SOV2 is the number of the redundancy channels with the signal faults of the single-side flattail SOV 2.

5. The method according to claim 1, wherein in the step 2, the method for integrating the number of the single-side horizontal tail electrical faults is as follows:

respectively detecting the states of a current switch on signal, a horizontal tail control surface position monitoring signal and a horizontal tail DDV valve core position model monitoring signal of 4 redundancy channels on the single-side horizontal tail, and when any one of the signals of one redundancy channel is in fault, considering that the horizontal tail of the redundancy channel is in electrical fault; the number of single-side horizontal tail electrical faults is the number of redundant channels with the horizontal tail electrical faults.

6. The method according to claim 5, wherein the method for judging the states of the horizontal tail current switch on signal, the horizontal tail control surface position monitoring signal and the horizontal tail DDV valve core position model monitoring signal comprises the following steps:

acquiring a switch-on signal of the horizontal tail current switch, wherein the signal is '0', the switch-on fault of the horizontal tail current switch is indicated, and the signal is '1', the switch-on normal of the horizontal tail current switch is indicated;

acquiring a position monitoring signal of the horizontal tail control surface, wherein the signal is '0', the position monitoring fault of the horizontal tail control surface is indicated, and the signal is '1', the position monitoring of the horizontal tail control surface is indicated to be normal;

and acquiring a position model monitoring signal of the horizontal tail DDV valve core, wherein the signal is '0', the position model monitoring fault of the horizontal tail DDV valve core is represented, and the signal is '1', the position model monitoring normal of the horizontal tail DDV valve core is represented.

7. The method according to claim 1, wherein in the step 3, the method for integrating the number of the unilateral horizontal tail servo faults comprises the following steps:

according to the mechanical-hydraulic fault number and the electrical fault number of the single-side horizontal tail, the single-side horizontal tail fault number is integrated according to the following table:

TABLE 2 Single-sided flattail number of failures Synthesis

8. The method of claim 1, wherein in step 4, the method for integrating the number of failures of the horizontal tail servo subsystem comprises:

according to the number of single-side horizontal tail faults, synthesizing the number of horizontal tail servo subsystem faults according to the following table:

TABLE 3 parallel-tailed Servo subsystem Fault number Synthesis

Technical Field

The invention relates to redundancy management and fault tolerance technology of a distributed system, in particular to a fault comprehensive method of a horizontal tail servo subsystem.

Background

The horizontal tail servo subsystem is used as an important component of a flight control system, and is very important for finding faults in time, comprehensively reporting the faults and prompting users to take corresponding treatment measures. The existing horizontal tail fault comprehensive method only synthesizes the fault conditions of the horizontal tail at one side, and has the defects that: the response to the fault condition of the horizontal tail servo subsystem is not comprehensive enough, and users cannot accurately know the state of the flight control system.

Disclosure of Invention

The purpose of the invention is: the comprehensive method for the faults of the horizontal tail servo subsystem considers the influences of different types of faults on the horizontal tail on the single side, can comprehensively synthesize the faults of the horizontal tail on the single side and the faults of the whole horizontal tail servo subsystem, reflects the fault condition of the horizontal tail servo subsystem, ensures that users can know the current state of the horizontal tail servo subsystem more comprehensively and accurately, and ensures the safety of flight and use.

A horizontal tail servo subsystem fault synthesis method comprises the following steps:

step 1, respectively integrating mechanical-hydraulic fault numbers of the single-side horizontal tail according to the fault condition of the single-side horizontal tail;

step 2, respectively integrating the single-side horizontal tail electrical fault numbers;

step 3, respectively synthesizing the single-side horizontal tail servo fault numbers according to the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number;

and 4, synthesizing the failure number of the horizontal tail servo subsystem according to the failure number of the horizontal tail servo subsystem on the single side.

In the step 1, the unilateral horizontal tail is controlled by 4 redundancies.

In the step 1, the method for integrating the single-side horizontal tail mechanical-hydraulic fault number comprises the following steps:

according to the fault numbers of the single-side horizontal tail SOV1 and the horizontal tail SOV2, the single-side horizontal tail mechanical-hydraulic fault number is obtained comprehensively according to the following table:

TABLE 4 number of single-sided horizontal tail mechanical-hydraulic failures

The method for integrating the fault numbers of the single-side horizontal tail SOV1 and the SOV2 comprises the following steps:

respectively collecting horizontal tail SOV1 signals of 4 redundancy channels of a single-side horizontal tail, wherein when the signal is '0', the signal indicates that the horizontal tail SOV1 of the redundancy channel is in fault, and when the signal is '1', the signal indicates that the horizontal tail SOV1 of the redundancy channel is normal; the number of the single-side horizontal tail SOV1 faults is the number of redundant channels of the single-side horizontal tail SOV1 signal faults; the method comprises the steps of respectively collecting flattail SOV2 signals of 4 redundancy channels of a single-side flattail, indicating that the flattail SOV2 of the redundancy channel has a fault when the signal is 0, indicating that the flattail SOV2 of the redundancy channel is normal when the signal is 1, and indicating that the number of the faults of the single-side flattail SOV2 is the number of the redundancy channels with the signal faults of the single-side flattail SOV 2.

In the step 2, the method for integrating the number of the single-side horizontal tail electrical faults comprises the following steps:

respectively detecting the states of a current switch on signal, a horizontal tail control surface position monitoring signal and a horizontal tail DDV valve core position model monitoring signal of 4 redundancy channels on the single-side horizontal tail, and when any one of the signals of one redundancy channel is in fault, considering that the horizontal tail of the redundancy channel is in electrical fault; the number of single-side horizontal tail electrical faults is the number of redundant channels with the horizontal tail electrical faults.

The method for judging the states of the horizontal tail current switch connection signal, the horizontal tail control surface position monitoring signal and the horizontal tail DDV valve core position model monitoring signal comprises the following steps:

acquiring a switch-on signal of the horizontal tail current switch, wherein the signal is '0', the switch-on fault of the horizontal tail current switch is indicated, and the signal is '1', the switch-on normal of the horizontal tail current switch is indicated;

acquiring a position monitoring signal of the horizontal tail control surface, wherein the signal is '0', the position monitoring fault of the horizontal tail control surface is indicated, and the signal is '1', the position monitoring of the horizontal tail control surface is indicated to be normal;

and acquiring a position model monitoring signal of the horizontal tail DDV valve core, wherein the signal is '0', the position model monitoring fault of the horizontal tail DDV valve core is represented, and the signal is '1', the position model monitoring normal of the horizontal tail DDV valve core is represented.

In the step 3, the method for integrating the number of the unilateral horizontal tail servo faults is as follows:

according to the mechanical-hydraulic fault number and the electrical fault number of the single-side horizontal tail, the single-side horizontal tail fault number is integrated according to the following table:

TABLE 5 Single-sided flattail number of failures Synthesis

In the step 4, the method for integrating the number of faults of the horizontal tail servo subsystem comprises the following steps:

according to the number of single-side horizontal tail faults, synthesizing the number of horizontal tail servo subsystem faults according to the following table:

TABLE 6 parallel-tailed Servo subsystem Fault number Synthesis

The invention has the technical effects that: firstly, according to the fault condition of the single-side horizontal tail, the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number are integrated to obtain the single-side horizontal tail servo fault number. And then comprehensively obtaining the fault number of the whole horizontal tail servo subsystem according to the fault number of the single-side horizontal tail servo subsystem. According to the method, on one hand, the influence of mechanical-hydraulic and electrical faults on the unilateral horizontal tail is considered, on the other hand, the faults of the whole horizontal tail servo subsystem are comprehensively integrated, the fault condition of the horizontal tail servo subsystem is reflected, a user can know the current state of the horizontal tail servo subsystem more comprehensively and accurately, and the flight and use safety is guaranteed.

Drawings

Fig. 1 is a flowchart of a fault integration method for a parallel-tailed servo subsystem according to an embodiment of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings.

A method for fault integration of a horizontal tail servo subsystem, as shown in fig. 1, includes:

step 1, respectively integrating mechanical-hydraulic fault numbers of single-side horizontal tails according to fault conditions of the single-side (left side and right side) horizontal tails;

the unilateral horizontal tail is controlled by 4 redundancies.

The method for integrating the mechanical-hydraulic fault number of the single-side horizontal tail comprises the following steps:

according to the fault numbers of the single-side horizontal tail SOV1 and the horizontal tail SOV2, the single-side horizontal tail mechanical-hydraulic fault number is obtained comprehensively according to the following table:

TABLE 7 number of single-sided horizontal tail mechanical-hydraulic failures

The method for integrating the fault numbers of the single-side horizontal tail SOV1 and the SOV2 comprises the following steps:

and respectively acquiring flattail SOV1 signals of 4 redundancy channels with one-side flattail, wherein when the signal is 0, the signal indicates that the flattail SOV1 of the redundancy channel is in failure, and when the signal is 1, the signal indicates that the flattail SOV1 of the redundancy channel is normal. The number of single-side horizontal tail SOV1 faults is the number of redundant channels of single-side horizontal tail SOV1 signal faults. The method comprises the steps of respectively collecting flattail SOV2 signals of 4 redundancy channels of a single-side flattail, indicating that the flattail SOV2 of the redundancy channel has a fault when the signal is 0, indicating that the flattail SOV2 of the redundancy channel is normal when the signal is 1, and indicating that the number of the faults of the single-side flattail SOV2 is the number of the redundancy channels with the signal faults of the single-side flattail SOV 2.

This step takes into account the effect of mechanical-hydraulic type faults on the single-sided horizontal tail.

Step 2, respectively integrating the single-side horizontal tail electrical fault numbers;

the method for integrating the single-side horizontal tail electrical fault number comprises the following steps:

and respectively detecting the states of a current switch-on signal, a horizontal tail control surface position monitoring signal and a horizontal tail DDV valve core position model monitoring signal of 4 redundancy channels of the single-side horizontal tail, and when any one of the signals of one redundancy channel is in fault, considering that the horizontal tail of the redundancy channel is in electrical fault. The number of single-side horizontal tail electrical faults is the number of redundant channels with the horizontal tail electrical faults.

The method for judging the states of the horizontal tail current switch connection signal, the horizontal tail control surface position monitoring signal and the horizontal tail DDV valve core position model monitoring signal comprises the following steps:

and acquiring a switch-on signal of the horizontal tail current switch, wherein the signal is '0', the switch-on fault of the horizontal tail current switch is indicated, and the signal is '1', the switch-on normal of the horizontal tail current switch is indicated.

And acquiring a position monitoring signal of the horizontal tail control surface, wherein the signal is '0', the position monitoring fault of the horizontal tail control surface is indicated, and the signal is '1', the position monitoring of the horizontal tail control surface is indicated to be normal.

And acquiring a position model monitoring signal of the horizontal tail DDV valve core, wherein the signal is '0', the position model monitoring fault of the horizontal tail DDV valve core is represented, and the signal is '1', the position model monitoring normal of the horizontal tail DDV valve core is represented.

The influence of the electric type fault on the single-side horizontal tail is considered in the step.

Step 3, respectively synthesizing the single-side horizontal tail servo fault numbers according to the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number;

the method for integrating the number of the single-side horizontal tail servo faults comprises the following steps:

according to the mechanical-hydraulic fault number and the electrical fault number of the single-side horizontal tail, the single-side horizontal tail fault number is integrated according to the following table:

TABLE 8 Single-sided flattail number of failures Synthesis

The method comprehensively considers the influence of mechanical-hydraulic type faults and electrical type faults on the single-side horizontal tail, and the current state of the single-side horizontal tail can be comprehensively reflected through the number of the single-side horizontal tail faults obtained through synthesis.

And 4, synthesizing the failure number of the horizontal tail servo subsystem according to the failure number of the horizontal tail servo subsystem on the single side.

The method for integrating the number of faults of the horizontal tail servo subsystem comprises the following steps:

according to the number of single-side horizontal tail faults, synthesizing the number of horizontal tail servo subsystem faults according to the following table:

TABLE 9 servo subsystem failure number integration

According to the influence of the single-side horizontal tail fault number on the state of the whole flight control system, the horizontal tail servo subsystem fault number is comprehensively obtained, and users can conveniently know the fault condition of the current horizontal tail servo subsystem and the state of the whole flight control system.

The present invention will be further described with reference to the following examples.

Example one

Take the process of fault synthesis of a horizontal tail servo subsystem of a certain type of airplane as an example.

Step 1, respectively integrating the mechanical-hydraulic fault number of the single-side horizontal tail according to the fault conditions of the single-side (left side and right side) horizontal tail.

The left-side horizontal tail SOV1 signal AB channel is in '0' fault, the CD channel is in '1' normal, the four channels of the left-side horizontal tail SOV2 signal are in '1' normal, the right-side horizontal tail SOV1 signal ABC channel is in '0' fault, the D channel is in '1' normal, the right-side horizontal tail SOV2 signal BCD channel is in '0' fault, and the A channel is in '1' normal. At this time, the number of faults of the left-side horizontal tail SOV1 is 2, the number of faults of the left-side horizontal tail SOV2 is 0, the number of faults of the right-side horizontal tail SOV1 is 3, and the number of faults of the right-side horizontal tail SOV2 is 3.

From table 1, it can be obtained that the left horizontal tail mechanical-hydraulic failure number is 0 and the right horizontal tail mechanical-hydraulic failure number is 2.

Step 2, respectively integrating the single-side horizontal tail electrical fault numbers;

the current switch-on signal of the left horizontal tail A channel is in a 0 fault state, the horizontal tail control surface position monitoring signal and the horizontal tail DDV valve core position model monitoring signal are in a 1 normal state, and the horizontal tail current switch-on signal, the horizontal tail control surface position monitoring signal and the horizontal tail DDV valve core position model monitoring signal of the BCD channel are in a 1 normal state. The position monitoring signal of the horizontal tail control surface of the B channel on the right side is in a fault of '0', the switch-on signal of the horizontal tail current switch and the position model monitoring signal of the horizontal tail DDV valve core of the C channel are in a normal state of '1', the position model monitoring signal of the horizontal tail DDV valve core of the C channel is in a fault of '0', the switch-on signal of the horizontal tail current switch and the position model monitoring signal of the horizontal tail DDV valve core of the AD channel are in a normal state of '1', and the switch-on signal of the horizontal tail current switch, the position monitoring signal of the horizontal tail control surface and the position model monitoring signal of the horizontal tail DDV valve core of the AD channel are in a normal state of '1'.

The number of left-side horizontal tail electrical faults is 1, and the number of right-side horizontal tail electrical faults is 2.

Step 3, respectively synthesizing the single-side horizontal tail servo fault numbers according to the single-side horizontal tail mechanical-hydraulic fault number and the single-side horizontal tail electrical fault number;

from table 2, it can be obtained that the number of left-side flattail servo failures is 1 and the number of right-side flattail servo failures is 2.

And 4, synthesizing the failure number of the horizontal tail servo subsystem according to the failure number of the horizontal tail servo subsystem on the single side.

According to Table 3, the number of failures in the parallel-tailed servo subsystem is 2.