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aircraft power distribution system

A power distribution system, aircraft technology, applied in instrumentation, power distribution, electrical components, etc., can solve problems such as doubling design and logistics costs

Active Publication Date: 2019-06-25
SAFRAN ELECTRICAL & POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] During development or the aircraft's service life, in the case of retrofit systems, both types of boards would need to be retrofitted and possibly upgraded by the aircraft manufacturer or operator, doubling the design and logistical costs each time

Method used

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Embodiment Construction

[0040] From now on, the current development of the protection board structure can envisage the replacement of the microprocessor used so far for each protected path by a set of at least two microprocessors for controlling all the protected paths (that is to say, For example, 16 microprocessors for a 16-way protection board). figure 2The main elements of such a fender are shown. It can be seen that the two redundant microprocessors (5a, 5b) control the control means (6a, 6b) of the power units of the protected path via intermediary means (7a, 7b, 7n) for determining the instructions to be transmitted , 6n), wherein the intermediary device is able to determine which microprocessor instruction has to be transferred. The aforementioned microprocessors are each connected to means for measuring the status of the protected path, and to the aircraft bus (4a, 4b).

[0041] Such a protective board allows a substantial reduction in the number of microprocessors used (while reducing we...

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PUM

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Abstract

A power distribution system of an aircraft, comprising at least one power supply path comprising at least one power unit capable of opening or breaking the connection between at least one electrical energy source and at least one device of the aircraft. The power distribution system includes a plurality of protection boards (2b, 2n), each protection board includes at least two microcontrollers, each of the microcontrollers is capable of sending instructions to the electrical power protected by each protection board Each power unit of the supply path, in the set of microcontrollers of the protection board, at least two of all the microcontrollers of said protection board (2b, 2n) are provided with communication and computing functions.

Description

technical field [0001] The technical field of the present invention relates to the power distribution system of an aircraft, and in particular to a control method for such a system. Background technique [0002] Typically, an aircraft has an electrical system including, inter alia, a primary power distribution system and a secondary power distribution system. The secondary power distribution system is capable of protecting and distributing electric power from internal power sources such as generators or batteries or external power sources such as ground power units. [0003] The secondary distribution system described above consists of a number of circuit boards, notably a communication and computing board (EDMU) and a protection board (SSPC). [0004] figure 1 A secondary distribution system according to the prior art is shown. The system consists of two types of boards: a communication and computing board called the Electrical Distribution Management Unit ("EDMU"), see ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02J4/00
CPCG06F13/36H02J3/0073H02J2310/44H02H1/0061H02J4/00B64D2221/00G06F1/28H02J9/00H02J13/00
Inventor 让·克莱尔·普拉迪耶
Owner SAFRAN ELECTRICAL & POWER