Engine control system

A control system and engine technology, applied in the direction of engine control, combustion engine, machine/engine, etc., can solve the problems of engine and propeller out of control, safety hazards, high software dependence, etc., to improve reliability, increase control margin, improve Effects on handling and safety

Active Publication Date: 2021-04-09
CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The electrical control system of the engine must be safe and reliable. If the engine and propeller control fail, it will lead to the crash of the machine and cause serious safety accidents
[0003]Most of the engine controllers for manned and unmanned aerial vehicles are dual-redundant software control architectures, which accept aircraft commands through communication, which is highly dependent on software and has low redundancy , if the engine controller has a dual-channel failure or a line communication failure, it will cause the engine electrical control system to fail to work or fail to accept aircraft commands, and the engine and propeller will be out of control
In addition, the throttle and propeller speed adjustment of the engine itself are mostly single redundant, which poses a safety hazard

Method used

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  • Engine control system

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Embodiment Construction

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0027] This program designs a set of engine electrical control system, such as figure 1 As shown, its core is the engine controller, and the controller has A, B numerical control channels and C emergency channel. Channels A and B are hot backup for each other, adopt CPU+FPGA mode, and realize normal control of engine and propeller through software. Channel C is an independent emergency channel, and the emergency control of the engine and propeller is realized through FPGA hardware. When both A and B CNC channels fail, it can automatically switch to C channel to work.

[0028] Under normal circumstances, the engine controller accepts the instructions of t...

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Abstract

The invention belongs to the technical field of aero-engine control, and discloses an engine control system. A core of the engine control system is an engine controller, and the controller is provided with a numerical control channel A, a numerical control channel B and an emergency channel C. The channel A and the channel B are hot backups for each other, a CPU + FPGA mode is adopted, and normal control over an engine and a propeller is achieved through software. The channel C is an independent emergency channel, and emergency control over the engine and the propeller is achieved through FPGA hardware. When the numerical control channel A and the numerical control channel B fail, the channel C can be automatically switched to work.

Description

technical field [0001] The invention belongs to the technical field of aero-engine control, in particular to an engine control system. Background technique [0002] The engine electrical control system is a key subsystem of the aircraft propulsion system, which is used to realize the control of the engine and propeller by the manned pilot or the unmanned aerial vehicle operator. The electrical control system of the engine must be safe and reliable. If the control of the engine and propeller fails, it will lead to the crash of the aircraft and cause serious safety accidents. [0003] Most of the engine controllers for manned and unmanned aerial vehicles now have a dual-redundancy software control architecture, which accepts aircraft instructions through communication, and has a high degree of dependence on software and low redundancy. If the engine controller has a dual-channel failure or a line communication failure, it will It will cause the engine electrical control syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D11/10F02D41/14F02D41/22F02D45/00
CPCF02D11/10F02D11/107F02D41/22F02D41/1401F02D45/00Y02T10/40
Inventor 周小平王家学陈光辉陈富宽冯学忠唐昭勇
Owner CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
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