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A kind of eps system data encoding and storage method

A system data and encoding method technology, applied in the field of EPS system data processing, can solve the problems of low work efficiency and low utilization rate of memory chips, and achieve the effects of improving efficiency, flexible definition, and improving utilization rate

Active Publication Date: 2022-06-21
天津德科智控股份有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the scalability of the program when transplanting different product types, there is usually a large margin in the allocation of data storage addresses, resulting in low utilization of memory chips. In addition, when product requirements change, it is necessary to add / delete A large amount of recoding work needs to be completed when changing the updated storage variable, and the work efficiency is very low. Therefore, we propose a data coding and storage method for the EPS system

Method used

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  • A kind of eps system data encoding and storage method
  • A kind of eps system data encoding and storage method
  • A kind of eps system data encoding and storage method

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Embodiment

[0030] like figure 1 - Image 6 Shown, a kind of EPS system data encoding comprises the following steps:

[0031] S1. The implementation of data dictionary query and processing, including the definition of external tables and the implementation of internal software coding. The definition of external tables is defined separately in EXCEL according to the needs of the application, and variables can be flexibly added or deleted as needed , the internal software needs to be programmed according to the variable attributes defined in the external EXCEL table;

[0032] S2, 4-byte address unified encoding realization, all types of data are stored in 4 bytes, the first byte stores the index number of the data variable, the second byte stores the data status and verification information, and the third byte stores , the fourth byte stores the high byte and low byte of the data respectively;

[0033] S3. CRC check calculation, the length of the information field and the check field can...

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Abstract

The invention discloses an EPS system data encoding and storage method, comprising the following steps: S1, realization of data dictionary query and processing; S2, realization of unified encoding of 4-byte addresses; S3, CRC check calculation; The data is uniformly encoded, and each data is allocated four bytes of storage space, which contains the data type, index number, check code and 16-bit data. At the same time, all the data in the EPS controller that needs to interact with the outside are uniformly encoded, the EPS data dictionary is designed, and the data index number defined in the data dictionary is used as the basis for data external storage and internal decoding.

Description

technical field [0001] The invention relates to the technical field of EPS system data processing, in particular to an EPS system data encoding and storage method. Background technique [0002] During the application of the EPS system, many key data of the system need to be stored in the external storage unit, and these data include EPS system control parameters, status parameters, and operating data when a fault occurs. In the existing use, it is necessary to define the storage position of each variable in the external storage unit first, and identify different data by the storage position, and at the same time read the data according to different positions in the EPS controller, and then look up the table to distinguish the data Type, in order to perform decoding conversion. [0003] In order to ensure the scalability of the program when transplanting different product types, there is usually a large margin in the allocation of data storage addresses, resulting in low uti...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/10G06F16/31G06F16/33
Inventor 李志杰王豪王伟强
Owner 天津德科智控股份有限公司