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A Fault Detection Method for Autopilot Based on Parameter Monitoring

A technology of autopilot and fault detection, applied in the field of aircraft flight control system to achieve the effect of improving safety

Active Publication Date: 2020-11-06
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of autopilot fault detection method based on parameter monitoring, to solve at least one problem that existing autopilot fault detection method exists

Method used

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  • A Fault Detection Method for Autopilot Based on Parameter Monitoring

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to the technical field of an aircraft flight control system and particularly relates to an autopilot fault detection method based on parameter monitoring. The method comprises a step of detecting a current longitudinal parameter and a current transverse parameter of an aircraft in a predetermined state through a detection module, a step of comparing a current longitudinal parameter and a current transverse parameter received by a task navigation system with a given longitudinal parameter and a given transverse parameter through a data comparison module and obtaining a longitudinal parameter difference and a transverse parameter difference, and a step of judging whether the longitudinal parameter difference and the transverse parameter difference exceed a range. According to the autopilot fault detection method based on parameter monitoring, through judging whether the longitudinal parameter difference and the transverse parameter difference are in a predetermined value range at the same time, whether an autopilot is failed or not is accurately judged, and the safety is ensured.

Description

technical field [0001] The invention relates to the technical field of aircraft flight control systems, in particular to an autopilot fault detection method based on parameter monitoring. Background technique [0002] like figure 1 As shown, the autopilot is mainly used to maintain the aircraft's altitude, attitude, and automatic leveling, or to achieve automatic navigation, return landing, or guidance functions by cross-linking with the mission and navigation system to reduce the pilot's operational burden. During the working process of the autopilot, there may be equipment hardware and signal failures, or there may be strong external disturbances, resulting in the system not working properly. The system needs to monitor and identify these faults, disconnect the automatic control in time and prompt the pilot to ensure flight safety. [0003] At present, most hardware failures can be identified through in-flight self-testing, and externally input cross-link signal failures...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0235
Inventor 靳方留
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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