Vollredundante triplex fly-by-wire-architektur

AT1902104TUndetermined Publication Date: 2026-04-15EMBRAER SA
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Patent Information

Application Number
AT2023167485T
Authority / Receiving Office
AT · AT
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-04-12
Filing Date
2023-04-12
Publication Date
2026-04-15
Estimated Expiration
2043-04-12

AI Technical Summary

Technical Problem

Current Vertical Take-Off and Landing (VTOL) aircraft Fly-By-Wire (FBW) systems lack the necessary redundancy and complexity to ensure high availability of effectors, particularly in urban air mobility applications, where weight reduction and simplified Flight Control System (FCS) architectures may compromise safety and controllability.

Method used

A triplex Flight Control Computer (FCC) architecture is implemented, where each FCC is connected to all controllers for effector actuation, with point-to-point links to reduce bus message collisions and ensure high availability of effectors, allowing for direct or indirect connections through retransmitters (RTXs) to maintain control in case of failures.

Benefits of technology

This configuration ensures that all or most effectors remain operational even in the event of loss of two flight control computers, enhancing safety and controllability by reducing the risk of unstable behavior during vertical takeoff, transition, and cruise phases.

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Abstract

A first Flight Control system configuration, and the method to obtain such first configuration, has controllers of effector actuation able to receive commands directly from at least three Flight Control Computers (FCCs). A second Flight Control system configuration, and the method to obtain such second configuration, has retransmitters (RTX) that receive commands from the three FCCs and then retransmit to the controllers of effector actuation. A third Flight Control system configuration, and the method to obtain such third configuration, is a hybrid configuration.
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