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Method for multi-dimensional storage of engine fault information

A fault information and engine technology, which is applied in the field of multi-dimensional storage, can solve the problems of inconvenient detection of historical fault information storage space management of engine historical fault information, and achieve the effect of overcoming poor management of storage space, small storage space, and easy programming

Inactive Publication Date: 2014-08-27
SICHUAN YAMEI POWER TECH
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Problems solved by technology

[0004] In order to solve the problem of inconvenient storage space management and historical fault information detection of the engine history fault information, the present invention provides a device that can detect and display in time, is convenient for maintenance detection and calling, and can avoid the storage space generated by the data storage of the engine electronic control unit. Multidimensional Storage Method of Insufficient or Excessively Wasted Engine Fault Information

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  • Method for multi-dimensional storage of engine fault information

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Embodiment Construction

[0013] refer to figure 1 . According to the present invention, according to the size of the current storage space and the requirements for storage of engine history fault information, the multi-dimensional table method is used to set up the data storage space, and 32 tables can be created. Create 32 tables, and the preset fault information overflow limit in the table is 8 fault information. In the EEPROM memory chip, first establish a fault information data storage table, which contains characteristic data such as table number (ie module number), channel number, fault diagnosis time, fault overflow flag, fault code and fault location information. The preset fault information overflow limit in the table is that 8 fault messages can be recorded. When the engine fault information is generated, the fault data is written according to the specified parameters, and it is checked whether the overflow limit of the fault information is exceeded. When the fault information exceeds the...

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Abstract

The invention relates to a method for multi-dimensional storage of engine fault information. By the adoption of the multi-dimensional storage of the engine fault information, detection and display can be conducted in time, maintenance detection and calling are convenient, and the problems of insufficient storage space and waste caused by an oversized space during storage of data of an electronic control unit of an engine can be avoided. According to the technical scheme, the method comprises the steps that a data storage space is set in a multi-dimensional table mode in a storage chip EEPROM of the electronic control unit ECU of the engine, storage parameters in a fault information data storage table are set, and one fault information data storage table is established firstly, wherein the table contains the number of the table and feature data; an overflowing limiting quantity of the fault information is preset in the fault information data storage table, and when the amount of the fault information exceeds the overflowing limiting quantity and fault overflowing identification becomes 1, another fault information data storage table with the same content and the same storage method is established in an automatic circulation mode.

Description

technical field [0001] The invention relates to a multi-dimensional storage method for storing engine fault information in an electronic controller. Background technique [0002] In the digital control system of aero-engine, reliability is a very important technical index. In order to improve the reliability of the numerical control system, there must be perfect fault detection and fault display functions, so as to judge the faults of the engine numerical control system in time. The digital engine electronic control system consists of three parts: sensors, electronic control units, and actuators. The function of the electronic control unit ECU is to collect and process the input signals of various sensors, perform control decision-making calculations according to the requirements of the engine work, and output corresponding control signals. When the engine is working, the engine electronic control unit sends control instructions to each actuator according to the program st...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G01M15/00
CPCG06F16/2282
Inventor 郑德华杨正军朱建江
Owner SICHUAN YAMEI POWER TECH
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