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Voltage Acquisition Method for Battery Pack

A voltage acquisition and battery pack technology, applied in the field of battery technology, can solve problems such as price and use restrictions, and achieve the effect of fast voltage acquisition and avoiding false acquisition actions.

Active Publication Date: 2020-01-07
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many manufacturers and designers adopt the special chip design of the battery management system, which will be greatly restricted in terms of price and use.

Method used

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  • Voltage Acquisition Method for Battery Pack
  • Voltage Acquisition Method for Battery Pack

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Embodiment Construction

[0030] Through the following examples, combined with the attached figure 1 , the technical solution of the present invention will be further specifically described. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general concept of the present invention, but should not be construed as a limitation of the present invention.

[0031] According to the voltage acquisition device provided by the present invention, it includes: a first controller, a second controller, and a third controller, wherein the first controller, the second controller, and the third controller are connected to each other by communication; A switch module, the switch module is communicatively connected with the second controller and the third controller, and the switch module includes a plurality of switches, each of the plurality of switches is connected to a battery pack whose voltage is to be collected The battery...

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Abstract

The present invention provides a voltage collection method for a battery pack, which uses a voltage collection device including: a first controller, a second controller and a third controller, wherein the first controller, the second controller and the third controller Three controllers are communicatively connected each other; a switch module is communicatively connected with the second controller and the third controller, and the switch module includes a plurality of switches, each of the plurality of switches A battery unit corresponding to the battery unit in the battery pack whose voltage is to be collected, that is, the switch corresponding to the battery unit is closed, and the voltage value of the battery unit is transmitted to the first controller, so that the voltage value of the battery unit is Collection; if the switch corresponding to the battery unit is disconnected, the voltage of the battery unit corresponding to the switch cannot be collected.

Description

technical field [0001] The invention relates to the field of new energy, and in particular to battery technology. Background technique [0002] The battery management system (BMS) is called the "brain" of the electric vehicle power system in the new energy industry, and is called the three core technologies of electric vehicles together with the power battery and the vehicle control system. The main function of BMS is to be able to identify problematic batteries in the power source composed of hundreds of batteries in the shortest time, and to achieve battery balance and effective use through reasonable charging and discharging control, thereby avoiding battery over-discharge and overcharge, thereby prolonging the service life of the battery. At present, many manufacturers and designers adopt the special chip design of the battery management system, which will be greatly restricted in terms of price and use. The core point of the main design of BMS is whether it can accura...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42
CPCH01M10/425H01M2010/4271Y02E60/10
Inventor 会国涛张化光魏庆来
Owner NORTHEASTERN UNIV LIAONING