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Method for calibrating internal parameters of MPU end program based on file uploading

A technology for uploading internal parameters and files, applied in software deployment, program control devices, program control design, etc., can solve problems such as the inability to allocate memory blocks for program calibration on the MPU end, and inability to calibrate parameters, etc., to achieve the effect of improving efficiency

Pending Publication Date: 2022-05-27
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to different chip characteristics on the MPU end, it is not possible to allocate a specific memory block to the internal calibration of the MPU end program, so parameter calibration cannot be performed through CANape.

Method used

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  • Method for calibrating internal parameters of MPU end program based on file uploading
  • Method for calibrating internal parameters of MPU end program based on file uploading

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Embodiment Construction

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] In order to better understand the technical solutions of the present invention, the definitions and descriptions of the related terms involved in the present invention are first given:

[0023] json: a lightweight data exchange format; model code: C code converted from a model built by Matlab.

[0024] The purpose of the present invention is to provide a method for calibrating the internal parameters of the MPU side program of the vehicle domain controller. The program mentioned here refers to a process program running on the MPU side, and the process contains one or more model codes corresponding to the application layer. different modules. This calibration method is carried out according to the following steps, please also refer to figure 2 ,

[0025] 1) The module that needs to be calibrated first opens the signal to be calibra...

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Abstract

The invention discloses a method for calibrating internal parameters of an MPU (Microprocessor Unit) end program based on file uploading, which comprises the following steps of: firstly, opening a signal required to be calibrated in a model code by a module required to be calibrated, and generating a model code with calibration parameters; then reading calibration parameters and initial values in the model codes, and generating a json format primary version parameter configuration table; writing the initial edition parameter configuration table into the real vehicle, recalibrating parameters matched with the vehicle model on the real vehicle through the upper computer, and generating a new edition parameter configuration table suitable for the vehicle model and the working condition; and writing the corresponding calibration quantity into the program by using the newly generated parameter configuration table when the program is started, thereby completing parameter calibration. According to the method, calibration of the internal parameters of the MPU end program can be realized, and the efficiency of calibration work can be improved.

Description

technical field [0001] The invention relates to parameter calibration, and more particularly to a method for calibrating internal parameters of an MPU-side program based on file uploading. The invention is used to calibrate the internal parameters of software or programs through a local parameter table and a certain technology to achieve the calibration of the parameters. It belongs to the technical field of automobile software calibration. Background technique [0002] In order to make the vehicle work efficiently and reliably and maximize the role of various hardware configurations, the role of software and programs is irreplaceable. After the software is written, not all situations and models can be used in general, and the parameters involved in the software need to be calibrated according to different models and application conditions, so as to maximize the effect of the relevant configuration. For example, the Chinese invention patent with the publication number CN11...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65G06F8/71G06F9/445
CPCG06F8/65G06F8/71G06F9/44505
Inventor 张飞龙
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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