JP-2026514401-A - Battery management system communication method, battery management system, electronic equipment and medium

JP2026514401AJP 2026514401 AJP2026514401 AJP 2026514401AJP-2026514401-A

Abstract

This application discloses a battery management system communication method, a battery management system, an electronic device, and a medium. The battery management system communication method includes the steps of receiving battery status information from a battery monitoring unit, performing enhancement processing on the battery status information to obtain enhanced battery status information, and transmitting the enhanced battery status information to a battery management unit, causing the battery management unit to control the operating status of the battery according to the enhanced battery status information.

Inventors

謝永業
鄭剣
江吉兵

Assignees

恵州億緯▲リ▼能股▲フン▼有限公司

Dates

Publication Date: 20260511
Application Date: 20231207
Priority Date: 20230407

Claims (17)

A battery management system communication method applied to a relay unit of a battery management system, wherein the battery management system further includes a battery monitoring unit and a battery management unit, the battery monitoring unit, the battery management unit, and the relay unit are connected to the same communication network, and the battery management system communication method is The steps include receiving battery status information from the battery monitoring unit, The steps include: performing enhancement processing on the aforementioned battery state information and obtaining the enhanced battery state information; A battery management system communication method characterized by including the steps of: transmitting the enhanced battery status information to the battery management unit; and causing the battery management unit to control the operating status of the battery according to the enhanced battery status information.
The step of performing enhancement processing on the aforementioned battery state information and obtaining the enhanced battery state information is: The battery management system communication method according to claim 1, characterized in that it includes the step of performing filtering and/or amplification processing on the battery status information and obtaining the filtered and/or amplified battery status information.
The step of performing enhancement processing on the aforementioned battery state information and obtaining the enhanced battery state information is: The battery management system communication method according to claim 1, further comprising adjusting the baud rate of the enhanced battery status information to match the baud rate of the enhanced battery status information to the communication network.
The battery management system communication method according to claim 1, characterized in that the battery status information includes at least one of the battery module temperature and the battery module voltage.
After receiving battery status information from the battery monitoring unit, The steps include: acquiring the signal power of the aforementioned battery state information, The battery management system communication method according to claim 1, further comprising the step of determining whether or not to perform enhancement processing on the battery state information according to the signal power.
A battery management system communication method applied to a relay unit of a battery management system, wherein the battery management system further includes a battery monitoring unit and a battery management unit, the battery monitoring unit, the battery management unit, and the relay unit are connected to the same communication network, and the battery management system communication method is The steps include receiving command information from the battery management unit, The steps include: performing enhancement processing on the aforementioned command information and obtaining the enhanced command information; A battery management system communication method characterized by including the steps of: transmitting the enhanced command information to the battery monitoring unit and causing the battery monitoring unit to execute the enhanced command information.
The step of performing enhancement processing on the aforementioned command information and obtaining the enhanced command information is: The battery management system communication method according to claim 6, characterized in that it includes the step of performing filtering and/or amplification processing on the command information and obtaining the filtered and/or amplified command information.
The step of performing enhancement processing on the aforementioned command information and obtaining the enhanced command information is: The battery management system communication method according to claim 6, further comprising adjusting the baud rate of the enhanced command information to match the baud rate of the enhanced command information to the communication network.
After receiving command information from the battery management unit, The steps include: acquiring the signal power of the command information; The battery management system communication method according to claim 6, further comprising the step of determining whether or not to perform enhancement processing on the command information according to the signal power of the command information.
It is a battery management system, A battery monitoring unit connected to a communication network, A battery management unit connected to the aforementioned communication network, A battery management system characterized by including a relay unit connected to the communication network, located between the battery management unit and the battery monitoring unit, and configured to perform the battery management system communication method described in any one of claims 1 to 9.
The battery management system according to claim 10, characterized in that the relay unit is located in the middle region of the communication network.
The battery management system according to claim 10, characterized in that the relay unit comprises a box, a repeater, and a connector, the repeater being located inside the box, the connector being installed inside the box, and one end of the connector being connected to the repeater and the other end being connected to the communication network.
The battery management system according to claim 12, characterized in that the box comprises a housing and a lid plate, and the lid plate and the housing are sealed together by a sealing member.
The battery management system according to claim 13, characterized in that the box further comprises a fixing sheet, and the fixing sheet is connected to the bottom of the housing.
The battery management system according to claim 12, characterized in that the connector includes a first connector and a second connector, the first connector having one end connected to the repeater and the other end connected to the communication network, and the second connector having one end disconnected from the repeater and the other end connected to the communication network.
An electronic device comprising memory and a processor, wherein an application program is stored in the memory, and the processor is used to execute the application program in the memory and to perform the steps of the battery management system communication method described in any one of claims 1 to 9.
A medium on which a computer program is stored, wherein the computer program is executed by a processor and realizes the steps of the battery management system communication method described in any one of claims 1 to 9.

Description

This application claims priority to the Chinese patent applications filed with the China National Intellectual Property Administration on April 7, 2023, with application numbers 202310373057.5 and 202320769713.9, respectively, the entire contents of which are incorporated herein by reference. This application relates to the technology of batteries, specifically to battery management system communication methods, battery management systems, electronic devices, and media. In related technologies, when a vehicle is equipped with multiple battery boxes, the overall vehicle layout is restricted. Furthermore, due to differences in the external dimensions of the battery boxes, the Battery Management Unit (BMU) and the Cell Supervision Circuit (CSC) of the Battery Management System (BMS) cannot be installed in the same area. This results in a problem where the communication harness between the BMS and the CSC is too long, leading to signal distortion. [Technical issues] This application provides a battery management system communication method, a battery management system, an electronic device, and a medium that can solve the above-mentioned technical problems. [Technical solution] To achieve the above objective, this application employs the following technical solutions. In a first embodiment, an embodiment of the present invention provides a battery management system communication method applicable to a relay unit of a battery management system, the battery management system further includes a battery monitoring unit and a battery management unit, the battery monitoring unit, the battery management unit and the relay unit are connected to the same communication network, and the battery management system communication method is The steps include receiving battery status information from a battery monitoring unit, The steps include: performing enhancement processing on battery status information and obtaining the enhanced battery status information; The process includes the steps of transmitting the enhanced battery status information to a battery management unit and causing the battery management unit to control the battery's operating status according to the enhanced battery status information. In a second embodiment, the embodiments of the present invention further provide another battery management system communication method applicable to a relay unit of a battery management system, wherein the battery management system further includes a battery monitoring unit and a battery management unit, the battery monitoring unit, the battery management unit and the relay unit are connected to the same communication network, and the battery management system communication method is The steps include receiving command information from the battery management unit, The steps include: performing enhancement processing on the command information and obtaining the enhanced command information; The process includes the steps of transmitting the enhanced command information to the battery monitoring unit and causing the battery monitoring unit to execute the enhanced command information. In a third embodiment, the embodiments of the present application further provide a battery management system, the battery management system is A battery monitoring unit, which is used to collect battery status information and is connected to a communication network, A battery management unit connected to a communication network is used to control the battery's operating status according to battery status information. It includes a relay unit that is connected to a communication network, located between the battery management unit and the battery monitoring unit, and used to perform the battery management system communication method described above. In a fourth embodiment, the present invention further provides an electronic device comprising a memory and a processor, wherein an application program is stored in the memory, and the processor is used to execute the application program in the memory and to perform steps of the battery management system communication method. In a fifth embodiment, the embodiments of the present invention further provide a medium storing a plurality of commands, the commands being suitable for being loaded into a processor to perform steps of a battery management system communication method. [Beneficial effects] The beneficial effects of this invention are as follows: In the battery management system communication method provided by this invention, the battery status information transmitted between the battery monitoring unit and the battery management unit is enhanced by a relay unit, reducing attenuation during the information transmission process. This extends the transmission distance in the communication network between the battery monitoring unit and the battery management unit, mitigating the problem of signal distortion that is likely to occur due to the excessive length of the communication harness between