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Aircraft power supply system communication architecture

A technology of aircraft power supply system and communication, which is applied in the field of aircraft power system communication architecture, and can solve problems such as increasing hardware costs, increasing product volume and weight, and reducing reliability

Inactive Publication Date: 2020-06-16
SHANGHAI AVIATION ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] a) The cost is relatively high, which reduces the economy of the system;
[0010] b) TTP / C nodes need to purchase corresponding TTP / C boards, which increases hardware overhead, increases product complexity, reduces reliability, and also increases product volume and weight

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Architecture design of two-level communication system based on AFDX and CAN

[0032] figure 2 The two-level communication system architecture design based on AFDX and CAN proposed for this patent involves the following devices:

[0033] -2 BPCUs (Bus Bar Power Controllers), 1 each on the left and right

[0034] -4 sets of GCU (Generator Controller), 2 sets on the left and right;

[0035] -1 A GCU, divided into the left network

[0036] -1 RAT GCU, divided into the right network

[0037] -2 SPDUs (Secondary Power Distribution Units), 1 each on the left and right

[0038] - 4 G RPDUs (Remote Power Distribution Units), 2 on the left and right, as gateways to the RPDU subnet

[0039] - 12 sets of S RPDUs, 6 sets on the left and right, as the equipment of the RPDU subnet

[0040] This patent divides the above equipment into 6 subnets, which are:

[0041] -Subnet 1: L BPCU, L1 GCU, L2 GCU, A GCU and L SPDU, where L BPCU acts as the gateway of the subnet and communicat...

Embodiment 2

[0050] The two-level communication system architecture design based on AFDX and CAN proposed in this patent

[0051] Figure 4 The two-level communication system architecture design based on AFDX and CAN proposed for this patent involves the following devices:

[0052] -2 BPCUs (Bus Bar Power Controllers), 1 each on the left and right

[0053] -4 sets of GCU (Generator Controller), 2 sets on the left and right;

[0054] -1 A GCU, divided into the left network

[0055] -1 RAT GCU, divided into the right network

[0056] -2 SPDUs (Secondary Power Distribution Units), 1 each on the left and right

[0057] - 4 G RPDUs (Remote Power Distribution Units), 2 on the left and right, as gateways to the RPDU subnet

[0058] - 12 sets of S RPDUs, 6 sets on the left and right, as the equipment of the RPDU subnet

[0059] This patent divides the above equipment into 6 subnets, which are:

[0060] -Subnet 1: L BPCU, L1 GCU, L2 GCU, A GCU and L SPDU, where L BPCU acts as the gateway of ...

Embodiment 3

[0071] 2. The two-level communication system architecture design based on AFDX and CAN proposed in this patent

[0072] Figure 7 The two-level communication system architecture design based on AFDX and CAN proposed for this patent involves the following devices:

[0073] - 2 BPCUs (Bus Power Controllers), 1 on the left and 1 on the left

[0074] - 4 GCUs (generator controllers), 2 on the left and right;

[0075] - 1 A GCU, divided into the left network

[0076] - 1 RAT GCU, divided into the right network

[0077] - 2 SPDUs (Secondary Power Distribution Units), 1 each on the left and right

[0078] - 4 sets of G RPDU (Remote Power Distribution Unit), 2 sets on the left and right, as the gateway of the RPDU subnet

[0079] - 12 sets of S RPDUs, 6 sets on the left and right, as the equipment of the RPDU subnet

[0080] This patent divides the above-mentioned equipment into 4 subnets centered on G RPDU, which are:

[0081] - Subnet L1 G RPDU and R2 G RPDU with SPDU: L1 G R...

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Abstract

The invention discloses an aircraft power supply system communication architecture, and the architecture is characterized in that the architecture is based on a two-stage communication network of AFDXand CAN. The method has the advantages that the hardware overhead is reduced, the product complexity is reduced, the reliability is improved, and meanwhile, the size and the weight of the product arereduced.

Description

technical field [0001] The invention relates to a communication architecture of an aircraft power supply system. Background technique [0002] In the communication architecture of the power system of traditional aircraft (including more electric aircraft such as B787), the TTP / C communication protocol is mostly used. TTP / C is a time-triggered protocol, which can synchronize clocks between communication nodes and allow each node to send messages within a predetermined time slot, thereby effectively avoiding access conflicts caused by multiple nodes competing for the bus, thereby The real-time performance of the response and the certainty of the communication are improved. [0003] B787 Power System Communication Architecture Design [0004] The communication architecture of the Boeing 787 power system is as follows: figure 1 As shown, the equipment in the system includes GCU (generator controller), AGCU (APU generator controller), SPDU (secondary power distribution unit), ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/40
CPCH04L12/40H04L67/12H04L2012/40215H04L2012/4028
Inventor 万波
Owner SHANGHAI AVIATION ELECTRIC
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