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Adaptative feedback control of force fighting in hybrid actuation systems

A technology of drive controller and feedforward controller, which is applied in adaptive control, aircraft control, general control system, etc., and can solve problems such as component failure and structural damage

Active Publication Date: 2019-05-07
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unresolved force disputes can cause severe structural damage and / or component failure

Method used

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  • Adaptative feedback control of force fighting in hybrid actuation systems
  • Adaptative feedback control of force fighting in hybrid actuation systems
  • Adaptative feedback control of force fighting in hybrid actuation systems

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Embodiment Construction

[0027] Reference will now be made in detail to some specific examples of the disclosure, including the best modes contemplated by the inventors for carrying out the disclosure. Examples of these specific examples are shown in the accompanying drawings. While the disclosure has been described in conjunction with these specific examples, it will be understood that it is not intended to limit the disclosure to the described examples. On the contrary, it is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the present disclosure as defined by the appended claims.

[0028] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. Certain examples of the present disclosure may be practiced without some or all of these specific details. In other instances, well known process operations have not been described in detail so as not to un...

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Abstract

The invention relates to adaptative feedback control of force fighting in hybrid actuation systems. Systems for compensating for force fighting in multi-actuator systems are provided. A drive controller unit comprises a first feedforward controller in communication with a first actuator and configured to receive a drive command signal. A first feedback regulator is configured to output a first feedback input into the first feedforward controller, and to receive as input a first actuator position and a first actuator force. The drive controller unit further comprises a second feedforward controller in communication with a second actuator and configured to receive the drive command signal. A second feedback regulator is configured to output a second feedback input into the second feedforwardcontroller, and to receive as input a second actuator position and a second actuator force. The drive controller unit utilizes both feedforward controllers and both feedback regulators to minimize force fighting while driving a common control surface of an aircraft.

Description

technical field [0001] The present disclosure relates generally to hybrid actuation systems implementing fluid pressure and electromechanical actuators, and more particularly to systems for operating force fighting compensation. Background technique [0002] During operation of multiple actuators on a common control surface, manufacturing tolerances can lead to differences in the dynamic behavior of the actuators, thus leading to force dispute conditions. Force disputes arise because the actuators do not share the load equally. This situation is possible even if the actuators are controlled by a similar active power source (eg hydraulic pressure). When multiple actuators operate in a hybrid actuation system with two different active power sources (hydraulic and electric), the potential for unequal load sharing (force disputes) is amplified. [0003] Force disputes are basically due to differences in response between two similar or dissimilar actuators operating on a common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/048B64C13/505B64C9/00B64C13/40B64C13/50B64C2009/005
Inventor D·布兰丁J·科夫曼J·奎安博N·V·胡恩
Owner THE BOEING CO