A Safe Software Upgrade Method for Electric Vehicle Battery Management System

A battery management system, electric vehicle technology, applied in software deployment, electrical digital data processing, instruments, etc., to achieve the effect of ensuring normal startup, safe and reliable software download process, and preventing malfunction

Active Publication Date: 2021-05-25
苏州妙益科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a safe electric vehicle battery management system software upgrade method, which effectively prevents the problem that the BMS cannot work normally after downloading caused by software problems or hardware interruptions, and ensures a safe and reliable software download process

Method used

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  • A Safe Software Upgrade Method for Electric Vehicle Battery Management System
  • A Safe Software Upgrade Method for Electric Vehicle Battery Management System

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Embodiment Construction

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0014] see figure 1 and figure 2 , the embodiment of the present invention includes:

[0015] A safe method for upgrading software of an electric vehicle battery management system. The safe method for upgrading software of an electric vehicle battery management system includes an electric vehicle battery management system and a computer. The electric vehicle battery management system is the Battery Management System, or BMS for short. The software is composed of two parts. The hardware includes the circuit board, the main chip and the peripheral circuit. The software includes the application and the bootloader. Bit = 1; the download is complete, the f...

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Abstract

The invention discloses a safe software upgrade method for an electric vehicle battery management system. The safe electric vehicle battery management system software upgrade method includes an electric vehicle battery management system and a computer. The electric vehicle battery management system is referred to as BMS, and the BMS consists of hardware and The software consists of two parts. The software includes application and bootloader. There is a storage area in the bootloader. The storage area is used to store app backups. There is a CAN interface on the BMS. The BMS is connected to the computer through the CAN interface. By setting the software flag, app Backup area, multi-frame transmission of UDS protocol and software CRC check method. Through the above method, the present invention effectively prevents the problem that the BMS cannot work normally after downloading caused by software problems or hardware interruptions, and ensures a safe and reliable software downloading process.

Description

technical field [0001] The invention relates to computer software technology, in particular to a safe method for upgrading software of an electric vehicle battery management system. Background technique [0002] Generally, the device will be disconnected from the network and power during the software update process. First, the software data will be lost if the power is interrupted during the software download process, that is, the data packet will be lost during the software sending process. Normally, after the software enters the download mode, It is necessary to delete the original app software first, and then re-download the updated software package, but there is a problem with this operation. If the updated software package itself has bugs, the original app is directly deleted, which will cause software problems and cause In this case, it is difficult to complete the software update, or the updated software has defects and cannot run. Based on the above defects and defic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/65G06F13/10
CPCG06F8/65G06F13/102
Inventor 禹成海
Owner 苏州妙益科技股份有限公司
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