CN-121995821-A - Modularized redundant digital electronic controller hardware architecture

CN121995821ACN 121995821 ACN121995821 ACN 121995821ACN-121995821-A

Abstract

The invention provides a modularized redundant digital electronic controller hardware architecture which comprises a back plate, a computer board, a switching board, a power board, a signal acquisition board and an output driving board, wherein the computer board, the switching board, the power board, the signal acquisition board and the output driving board are all functional boards, each functional board adopts a single 6U VPX board, a plurality of board mounting slots are formed in the back plate, each functional board is mounted on the back plate, data interaction is carried out among the functional boards through Ethernet, the electronic controller architecture adopts a dual-redundancy structure, and the power board is used for supplying power to the computer board, the switching board, the signal acquisition board and the output driving board. The invention can solve the problems of complex hardware structure, poor expansibility, maintainability and reusability of the redundant electronic controller of the aeroengine.

Inventors

DONG YANWEI
WANG XINYUE
WANG MINGJIE
MOU CHUNHUI
NIE LINGCONG
LING WENHUI

Assignees

北京动力机械研究所

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (9)

1. The modularized redundant digital electronic controller hardware architecture is characterized by comprising a back plate, a computer plate, a switching plate, a power supply plate, a signal acquisition plate and an output driving plate; The computer board, the exchange board, the power board, the signal acquisition board and the output driving board are all functional boards, and each functional board adopts a single 6U VPX board; the backboard is provided with a plurality of board card mounting slots, and each functional board card is mounted on the backboard; Data interaction is carried out among the functional boards through the Ethernet, and the architecture of the electronic controller adopts a dual redundancy structure, specifically: The switching board is provided with a switching module A and a switching module B, each switching module comprises 1 Ethernet route, the Ethernet route of the switching module A is the Ethernet route A, and the Ethernet route of the switching module B is the Ethernet route B; a signal acquisition module A and a signal acquisition module B are arranged on each signal acquisition board, wherein the signal acquisition module A is connected with an Ethernet router A, and the signal acquisition module B is connected with the Ethernet router B; an output driving module A and an output driving module B are arranged on each output driving board, wherein the output driving module A is connected with an Ethernet route A, and the output driving module B is connected with the Ethernet route B; The computer board is provided with a computing module A and a computing module B, wherein the computing module A externally leads out 2 paths of Ethernet interfaces A to be respectively connected with an Ethernet route A and an Ethernet route B, and the computing module B externally leads out 2 paths of Ethernet interfaces B to be respectively connected with the Ethernet route A and the Ethernet route B; the power panel is used for supplying power to the computer board, the exchange board, the signal acquisition board and the output driving board.
2. The modular redundant digital electronic controller hardware architecture of claim 1, wherein computing module a and computing module B are collectively referred to as computing modules; Each calculation module consists of 1 DSP processor and 1 FPGA, wherein the DSP processor is responsible for executing calculation tasks, the FPGA is responsible for interface expansion, DSP processor reset control and state detection, among 2 Ethernet interfaces A led out from the outside, 1 Ethernet interface A is led out from the DSP processor and is connected to an Ethernet route A, the other 1 Ethernet interface A is led out from the FPGA and is connected to an Ethernet route B, the 2 Ethernet interfaces B are led out from the outside by the calculation module B, the 1 Ethernet interface B is led out from the DSP processor and is connected to an Ethernet route B, and the other 1 Ethernet interface B is led out from the FPGA and is connected to the Ethernet route A.
3. The hardware architecture of the modularized redundant digital electronic controller of claim 1 is characterized in that two CAN communication buses are arranged between functional boards and used as standby buses, a computing module A, a switching module A, a signal acquisition module A and an output driving module A are all connected with one CAN communication bus, a computing module B, a switching module B, a signal acquisition module B and an output driving module B are all connected with the other CAN communication bus, and the computing module A and the computing module B are connected through the CAN communication buses, so that each computing module CAN be simultaneously connected with the two CAN communication buses to realize that a single computing module CAN be simultaneously communicated with the signal acquisition module A, the signal acquisition module B, the output driving module A, the output driving module B, the switching module A and the switching module B.
4. A modular redundancy digital electronic controller hardware architecture as claimed in claim 1, wherein 2 ethernet routes are provided as the same network segment.
5. The hardware architecture of the modularized redundant digital electronic controller according to claim 1, wherein a redundancy communication bus is arranged between the signal acquisition module A and the signal acquisition module B, and the signal acquisition module A and the signal acquisition module B are in an electrical isolation state; The Ethernet route A and the Ethernet route B are provided with redundancy communication buses, and the Ethernet route A and the Ethernet route B are in an electrical isolation state; A redundancy communication bus is arranged between the output driving module A and the output driving module B, and the output driving module A and the output driving module B are in an electric isolation state; and a redundancy communication bus is arranged between the computing module A and the computing module B, and the computing module A and the computing module B are in an electrical isolation state.
6. The hardware architecture of the modularized redundant digital electronic controller of claim 2, wherein each switching module further comprises 1 SoC processor and a communication interface circuit, wherein the SoC processor of the switching module A is connected with the Ethernet route A, and the SoC processor of the switching module B is connected with the Ethernet route B; The signal acquisition board and the driving output board are identical in structure, each signal acquisition module comprises 1 SoC processor and a signal acquisition conditioning circuit, each output driving module comprises 1 SoC processor and an output driving circuit, the SoC processor of the signal acquisition module A is connected with the Ethernet router A, the SoC processor of the signal acquisition module B is connected with the Ethernet router B, the SoC processor of the output driving module A is connected with the Ethernet router A, the SoC processor of the output driving module B is connected with the Ethernet router B, the signal acquisition conditioning circuit is connected with the corresponding SoC processor to acquire external temperature and pressure, and the output driving circuit is connected with the corresponding SoC processor to output switching value and current.
7. The hardware architecture of the modularized redundant digital electronic controller of claim 6, wherein two paths of CAN communication buses are arranged between functional boards and used as standby buses, a DSP processor of a computation module A, an SoC processor of a switching module A, an SoC processor of a signal acquisition module A and an SoC processor of an output driving module A are all connected with one path of CAN communication buses, a DSP processor of a computation module B, an SoC processor of a switching module B, an SoC processor of a signal acquisition module B and an SoC processor of an output driving module B are all connected with the other path of CAN communication buses, and the DSP processor of the computation module A and the DSP processor of the computation module B are connected through the CAN communication buses, so that each computation module CAN be simultaneously connected with the two paths of CAN communication buses to realize that a single computation module CAN simultaneously communicate with the signal acquisition module A, the signal acquisition module B, the output driving module A, the output driving module B, the switching module A and the switching module B.
8. The hardware architecture of the modularized redundant digital electronic controller of claim 1, wherein the electronic controller adopts a dual redundancy power supply mode, namely, two power boards are adopted, namely, a power board A and a power board B, the power boards are used for converting external 28V direct current into 12V or +/-15V to supply power for the functional boards, and the power board A and the power board B supply power for all the functional boards simultaneously.
9. The modular redundancy digital electronic controller hardware architecture of claim 1, wherein the number of board card mounting slots on the backplane is adjustable according to functional requirements.

Description

Modularized redundant digital electronic controller hardware architecture Technical Field The invention belongs to the technical field of aeroengine control, and relates to a modularized redundant digital electronic controller hardware architecture. Background The digital electronic controller of the aeroengine is a core component of the engine, and has the main functions of sensing and processing state information of the engine and components thereof, executing control plan scheduling and control law calculation tasks according to flight control instructions, outputting control instructions, and realizing high-reliability and stable operation of the engine by adjusting the states of the components such as fuel oil, actuating mechanisms and the like of the engine. Meanwhile, fault diagnosis and protection treatment functions are provided for the engine, and safe operation of the engine is ensured. The digital electronic controller of the aero-engine is equivalent to a brain of an aero-engine control system, and the fault of the digital electronic controller can lead to engine surge, shutdown and even damage to the engine, and an aircraft loses a power source, so that the digital electronic controller of the aero-engine generally adopts a redundant design, and ensures that the engine can still safely and stably operate by switching to backup redundancy when single-point or double-point faults occur. The traditional digital electronic controller of the aeroengine basically adopts customized development, mainly meets the functional requirements of an adaptive engine, and has tight coupling of different functions and poor applicability and expansibility. Especially after the redundant design is adopted, the hardware architecture of the controller is more complex. If the engine object is replaced, a controller needs to be redeveloped, which leads to high development period and high cost. The traditional digital electronic controller of the aeroengine basically adopts customized development, mainly meets the functional requirements of an adaptive engine, and has compact coupling of different functions and poor expansibility, maintainability and reusability. Especially, after the redundancy design is adopted, the hardware circuit is doubled or even multiple times, more fault detection circuits and redundancy switching auxiliary circuits are added, and the hardware architecture of the controller is more complex. The redundancy functional circuits are arranged and interwoven together, the structure is complicated, and when a certain circuit fails, the circuit is difficult to effectively isolate, so that great difficulty is caused to the troubleshooting and positioning of the failure and the product maintenance. The traditional digital electronic controller of the aeroengine has poor product maintainability, is particularly unfavorable for service guarantee work of the product, and is very inconvenient if the whole controller is required to be replaced if the controller breaks down particularly when a task is executed in an external field. The controller developed by customization has poor expansibility. If the engine is modified, upgraded or a novel engine is researched and developed, the engine is often required to be researched and developed again due to the limitation of the architecture and hardware, and the original design and verification results cannot be directly used, so that the development period and the cost are high. Disclosure of Invention The present invention aims to solve at least one of the problems of the prior art. Therefore, the invention provides a modularized redundant digital electronic controller hardware architecture, which can solve the problems of complex hardware structure, poor expansibility, maintainability and reusability of the redundant electronic controller of the aeroengine. The technical scheme of the invention is as follows: The modularized redundant digital electronic controller hardware architecture comprises a back plate, a computer plate, a switching plate, a power supply plate, a signal acquisition plate and an output driving plate; The computer board, the exchange board, the power board, the signal acquisition board and the output driving board are all functional boards, and each functional board adopts a single 6U VPX board; the backboard is provided with a plurality of board card mounting slots, and each functional board card is mounted on the backboard; Data interaction is carried out among the functional boards through the Ethernet, and the architecture of the electronic controller adopts a dual redundancy structure, specifically: The switching board is provided with a switching module A and a switching module B, each switching module comprises 1 Ethernet route, the Ethernet route of the switching module A is the Ethernet route A, and the Ethernet route of the switching module B is the Ethernet route B; a signal acquisition module A and a signal acquisition module B ar