Secure electric vehicle battery management system software upgrading method

A battery management system, electric vehicle technology, applied in software deployment, electrical digital data processing, instruments, etc., to ensure reliability, safe and reliable software download process, and prevent BMS from not working properly.

Active Publication Date: 2018-07-27
苏州妙益科技股份有限公司
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  • Abstract
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  • Claims
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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

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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. Hardware and software are composed of two parts. Hardware includes circuit board, main chip (MCU) and peripheral circuits. Software includes application (application software) and bootloader (software download). , in nor...

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Abstract

The invention discloses a secure electric vehicle battery management system software upgrading method. The secure electric vehicle battery management system software upgrading method involves an electric vehicle battery management system and a computer; the electric vehicle battery management system is called BMS for short; the BMS consists of hardware and software; the software comprises an application and a bootloader; a storage region is arranged in the bootloader and used for storing app backup; a CAN interface is arranged on the BMS; the BMS is connected with the computer through the CANinterface; and a method for performing multi-frame transmission and software CRC by setting a software flag, an app backup region and a UDS protocol is realized. Therefore, the problem that the BMS cannot normally work after downloading due to software problems or hardware interruption is effectively prevented; and a secure and reliable software downloading process is ensured.

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 Applications(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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