Two-way architecture with redundant CCDL's

A communication device and processing unit technology, applied in the field of dual-channel architecture with redundant CCDL, can solve problems such as increasing wiring volume, difficulty in developing a flight control system, and increasing link failures, etc.

Active Publication Date: 2017-08-01
SAFRAN ELECTRONICS & DEFENSE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an increase in the number of links increases the probability of failure of one of these links and increases the wiring volume, making it difficult to develop a compact flight control system

Method used

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  • Two-way architecture with redundant CCDL's
  • Two-way architecture with redundant CCDL's
  • Two-way architecture with redundant CCDL's

Examples

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Embodiment Construction

[0030] figure 1 One embodiment of the invention shown relates to a flight control system of an aircraft comprising at least a first processing unit 1 and a second processing unit 2 . Both processing units are redundant and can each perform functions for controlling and regulating the aircraft's engines. Such as figure 1 The system shown forms a two-channel architecture comprising Channel A and Channel B.

[0031] Processing unit 1 and processing unit 2 may be processors of the same multiprocessor computer system comprising several processors. In order to strengthen the resistance of the flight control system to external attacks and to avoid that a single local event could destroy both processing units 1 and 2, the two channels can be mounted in separate housings at a distance from each other. In such configurations, the processing units are not integrated execution cores within a single processor.

[0032] The system also includes communication means that enable the connec...

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Abstract

The present invention concerns a flight control system of an aircraft comprising: a first processing unit (1), a second processing unit (2), -communication means configured to establish a first two-way digital link (3) and a second two-way digital link (4) between the first processing unit (1) and the second processing unit (2), said second link (4) being redundant with the first link (3), and said first link (3) and second link (4) being likely to be active concomitantly, said system further comprising backup communication means enabling data exchanges between the first processing unit (1) and the second processing unit (2) in the case of a failure in the first link (3) and second link (4), said backup communication means comprising an array of sensors or actuators (13) and / or a secure onboard network for the avionics (14).

Description

technical field [0001] The object of the invention is a flight control system for an aircraft comprising two processing units or computers and forming a dual-channel architecture. [0002] The system is more particularly suitable for small-sized engines, for example, engines of helicopters. Background technique [0003] An on-board flight control system used to equip an aircraft such as an existing airplane or helicopter performs functions for controlling and regulating the aircraft's engines to ensure proper operation of the aircraft's engines. These functions are critical to the safety of passengers. Therefore, such a system must be a fail-safe system. [0004] To this end, existing flight control systems typically include two processing units or computers, each capable of ensuring proper engine operation. Such systems thus form a two-channel architecture, where each channel is able to ensure that the vital functions are performed in the event of failure of the other ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40G05B9/03H04L69/40
CPCG05B9/03H04L12/40182G05B2219/24182G05B2219/25174G05B2219/25163G05B2219/25144G06F11/2007B64D31/00G05B19/048
Inventor 席琳·刘尼古拉斯·马蒂史蒂芬·兰福德
Owner SAFRAN ELECTRONICS & DEFENSE
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