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Battery management system

A technology of battery management system and battery pack, which is applied in the field of power supply and can solve problems such as failure to operate normally

Inactive Publication Date: 2016-12-21
朱玉俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electric vehicle battery pack is composed of several batteries in series. When one of the batteries fails, the entire battery pack will stop output and cannot operate normally.

Method used

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0014] Such as figure 1 As shown, a battery management system includes a battery assembly, a battery assembly detection unit, and a central controller. The positive and negative electrodes of the battery assembly are connected to the motor through the positive bus and the negative bus respectively. The battery assembly includes a first switching relay and two sets of For the battery pack, the moving contacts of the first conversion relay are connected to the positive bus, the positive poles of the two battery packs are respectively connected to the two static contacts of the first conversion relay, and the negative poles of the two battery packs are connected to the negative bus. The battery co...

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Abstract

The invention discloses a battery management system. The battery management system comprises a battery assembly, a battery assembly detection unit and a central control unit, wherein the positive electrode and the negative electrode of the battery assembly are connected with a motor through a positive electrode bus and a negative electrode bus respectively; the battery assembly comprises a first conversion type relay and two battery packs; the movable contact of the first conversion type relay is connected with the positive electrode bus; the positive electrodes of the two battery packs are connected with two static contacts of the first conversion type relay respectively; the negative electrodes of the two battery packs are connected with the negative electrode bus; the battery assembly detection unit is used for detecting the current, voltage and temperature output by the battery assembly, and controlling the first conversion type relay; and the battery assembly detection unit is connected with the central control unit. The battery management system is provided with the two battery packs; and when one battery pack is in fault or damaged, the other battery pack can be switched through the first conversion type relay, so that normal power supply is not affected.

Description

technical field [0001] The invention relates to a battery management system and belongs to the technical field of power supplies. Background technique [0002] The battery management system (BATTERY MANAGEMENT SYSTEM) is referred to as BMS. The main function is to improve the utilization rate of the battery, prevent the battery from overcharging and overdischarging, prolong the service life of the battery, and monitor the state of the battery. For electric vehicles, the BMS system shoulders a very important responsibility and is the core steward of the battery. The existing electric vehicle battery pack is composed of several batteries connected in series. When a problem occurs in one of the batteries, the entire battery pack will stop output and cannot operate normally. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a battery management system. [0004] In order to achieve the above object, the technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42
CPCH01M10/425H01M2010/4271Y02E60/10
Inventor 朱玉俊
Owner 朱玉俊
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