MPU calibration system based on Json and calibration method thereof

A technology for calibrating systems and parameters, which is applied in the field of data processing and can solve problems such as inability to achieve

Pending Publication Date: 2022-07-01
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the ever-increasing demand for MPU calibration, since MPUs generally run on operating systems such as Linux / QNX / Vxworks, their programs run in virtual space, and variables are implemented using virtual addresses. The general A2L+Map calibration method is can't be realized

Method used

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  • MPU calibration system based on Json and calibration method thereof
  • MPU calibration system based on Json and calibration method thereof
  • MPU calibration system based on Json and calibration method thereof

Examples

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] like figure 1 As shown, a Json-based MPU calibration system in this specific embodiment includes a host computer module, an embedded controller, a power supply module and an Ethernet transmission medium, and the host computer module is used to read the calibration parameters in the code, generate Json file, the embedded controller is used to identify the Json file, parse and read the variables to be modified in the Json file, and achieve the effect of changing the calibration value. The power module is used to supply power to the host computer module and the embedded controller. Ethernet The transmission medium is used to connect the upper computer module and the embedded controller.

[0026] like figure 2 As shown, a method of using the above-mentioned Json-based MPU calibration system for calibration, using the host computer module to read the cod...

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Abstract

The invention discloses a Json-based MPU calibration system, which comprises an upper computer module, an embedded controller, a power supply module and an Ethernet transmission medium, and is characterized in that the upper computer module is used for reading calibration parameters in codes and generating a Json file, the embedded controller is used for identifying the Json file, analyzing and reading variables to be modified in the Json file, and transmitting the variables to be modified to the Ethernet transmission medium; the power supply module is used for supplying power to the upper computer module and the embedded controller, and the Ethernet transmission medium is used for connecting the upper computer module and the embedded controller. The invention also discloses a method for marking by using the MPU calibration system based on Json, the parameter calibration of the algorithm in the MPU chip with high computing power is realized by using the Json file; meanwhile, according to parameter calibration in the method, a calibration value in software is directly and permanently modified, and the method is very efficient and convenient.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a Json-based MPU calibration system and a calibration method thereof. Background technique [0002] The automotive industry is in a period of rapid development, with more and more intelligent and personalized functions, especially as autonomous driving is gradually moving towards commercial application, the requirements for the development of autonomous algorithms are getting higher and higher, and the computing power of the controller is becoming more and more demanding. The higher the level, the architecture of the controller has gradually moved from the previous single MCU main chip architecture to a multi-MCU main chip, MCU+MPU main chip architecture, etc., that is, a domain controller with "control chip + computing chip" as the main architecture. [0003] In the process of algorithm development, there is a lot of calibration work. Traditional MCU chips are mostly bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G06F9/455
CPCG05B23/0213G06F9/45529G05B2219/24065
Inventor 向明芳周游张鹏
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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