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Voltage acquisition device and voltage acquisition method

A voltage acquisition and voltage value 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: 2017-10-31
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, many manufacturers and designers adopt the dedicated 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 device and voltage acquisition method
  • Voltage acquisition device and voltage acquisition method

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Embodiment Construction

[0015] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. 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.

[0016] 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 T...

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Abstract

The invention provides a voltage acquisition device and a voltage acquisition method. The voltage acquisition device comprises a first controller, a second controller, a third controller and a switch module, wherein the first controller, the second controller and the third controller are in communication connection in a paired way, the switch module is in communication connection with the second controller and the third controller and comprises a plurality of switches, each switch is corresponding to each battery unit in a battery pack to acquire a voltage, the switch corresponding to the battery unit is switched off, a voltage value of each battery unit is transmitted to the first controller, so that the voltage value of the battery unit is acquired, and the voltage of the battery unit corresponding to the switch cannot be acquired when the switch corresponding the battery unit is switched off.

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 balanced and effective use of batteries through reasonable charge and discharge control, thereby avoiding battery over-discharge and overcharge, thereby prolonging the service life of the battery. At present, many manufacturers and designers adopt the dedicated 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 ac...

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 会国涛张化光魏庆来
Owner NORTHEASTERN UNIV