Redundant electronic control unit for aviation piston engine

A technology of piston engine and electronic control unit, which is applied to engine components, engine control, engine ignition, etc., can solve problems such as the inability to meet the optimal air-fuel ratio of combustible mixture, achieve rollback and fault recovery, and improve safety. and stability, the effect of ensuring accuracy

Active Publication Date: 2018-02-23
TIANJIN UNIV
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Problems solved by technology

[0002] At present, domestic small aviation piston engines all use diaphragm carburetor fuel supply system. Since the carburetor measures fuel through the vacuum degree of the throat and mechanical means, it cannot meet the needs of the engine in various flight operations such as climbing, cruising and diving. The demand for the best air-fuel ratio of combustible mixture under various environmental conditions

Method used

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Embodiment Construction

[0013] The present invention will be described in detail below with reference to specific embodiments.

[0014] The redundant electronic control unit of the aviation piston engine of the present invention sets a redundant backup for the data stored in the RAM of the electronic control unit, and the redundant backup is not connected to the storage address of the original data, and the redundant backup is updated synchronously with the original data When interference occurs and the program error processing section is intercepted, the content of the redundant backup is overwritten to the location of the original data; the program executed in the electronic control unit is divided into multiple modules and the module ID register is set, and each module executes Single function, and only one exit is set for each module, and a unique ID number is configured for each module. When the corresponding function of the module is executed before returning to the exit, the corresponding ID numbe...

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Abstract

A redundant electronic control unit of an aviation piston engine realizes self-rescue of the RAM by optimizing the redundancy of the RAM data storage structure in the electronic control unit. When the original data is destroyed, the RAM data can be restored and corrected in time. Dividing the program into multiple modules and setting no-operation instructions and breakpoints between different modules can ensure that the program can be executed smoothly, and can realize rollback and fault recovery. The program execution is monitored through the counter, and when the program is in disorder, it can be restored in time to ensure the normal operation of the program. The electronic control unit can ensure the accuracy of sensor data collection by taking the average value of multiple samples of the sensor. The aviation piston engine redundant electronic control unit of the present invention can improve the safety and stability of engine work in application.

Description

Technical field [0001] The invention relates to the technical field of aviation piston engines, in particular to a redundant electronic control unit for aviation piston engines. Background technique [0002] At present, domestic small aviation piston engines all use diaphragm carburetor fuel supply system. Because the carburetor measures fuel through the vacuum degree of the throat pipe and mechanically, it cannot meet the requirements of the engine in climbing, cruising and diving. The demand for the best air-fuel ratio of combustible mixture under various environmental conditions. The fuel electronic control injection technology can improve the quality of fuel atomization and meet the fuel adaptability requirements of aviation piston engines and the changing demand for power during flight. [0003] Aviation piston engine electronic control unit ECU (ECU for short) is the control nerve center of the engine electronic injection system. It performs closed-loop control of the engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/02F02D41/22F02P9/00
Inventor 胡春明宋玺娟刘娜
Owner TIANJIN UNIV
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