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BMS control system and method for battery

A control system and battery technology, applied in battery/fuel cell control devices, secondary batteries, secondary battery repair/maintenance, etc. Reliability disclosure and other issues to achieve effective control and management, improve reliability and maintainability, and clear structure

Pending Publication Date: 2021-09-14
HEFEI GUOSHENG BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the existing battery pack BMS system, the functions are messy and the system is complicated, and the reliability of the system is revealed, which makes it impossible to effectively manage and control the battery pack, resulting in low safety and durability of the battery pack.

Method used

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  • BMS control system and method for battery

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

[0022] Such as figure 1 A BMS control system for batteries is shown, including a current sensor and a voltage sensor located inside the battery pack for obtaining battery pack data, an in-cell ECU connected to the battery cells in the battery pack, and the ECU ...

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Abstract

The invention discloses a BMS control system and method for a battery, and particularly relates to the technical field of a lithium battery BMS system. The system comprises a current sensor and a voltage sensor which are positioned in a battery pack and are used for acquiring battery pack data, in-battery-cell ECUs (electronic control unit) connected with a battery cell in the battery pack, and an out-battery-cell ECU for summarizing data information of the in-battery-cell ECU, and the out-battery-cell ECU is connected with an external CAN communication bus to upload data; the number of the in-battery-cell ECUs is multiple, the multiple in-battery-cell ECUs and the out-battery-cell ECU form a CAN bus network, the network topology structure is in a bus shape, the transmission protocol is CAN2.0B, and the out-battery-cell ECU comprises a first CAN controller and a second CAN controller. The whole battery management system is strong in management function and very clear in structure, the reliability and maintainability of the system are remarkably improved, the battery pack can be effectively controlled and managed, each single battery works under proper conditions, and the safety, durability and dynamic property of the batteries are fully guaranteed.

Description

technical field [0001] The present invention relates to the technical field of lithium battery BMS systems, and more specifically, the present invention relates to a BMS control system and method for batteries. Background technique [0002] As we all know, the power output of pure electric vehicles depends on the battery, and the battery management system BMS (Battery Management System) is the core of it, responsible for controlling the charging and discharging of the battery and realizing battery state estimation and other functions. If an electric car is compared to a human body, then the battery system is its heart, and the BMS battery management system is the brain that governs its body operations. The main purpose of the BMS battery system is to intelligently manage and maintain each battery unit, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery. However, during the operation of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/12B60L58/22H01M10/42H01M10/48
CPCB60L58/12B60L58/22H01M10/425H01M10/482H01M2010/4271H01M2010/4278Y02T10/70Y02T90/16Y02E60/10
Inventor 吴鹏
Owner HEFEI GUOSHENG BATTERY TECH
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