Active battery pack equalization charging system and charging method

A technology for equalizing charging and battery packs, which is applied in the direction of secondary battery charging/discharging, charge equalizing circuits, battery circuit devices, etc., can solve the problems of wasting electric energy and reducing manufacturing costs, and achieves reducing manufacturing costs, improving efficiency, and simplifying the structure. Effect

Inactive Publication Date: 2020-03-27
浙江高泰昊能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present disclosure provides an active battery pack equalization charging system and charging method, aiming to solve the problem that in the prior art, the equalization circuit adopts passive equalization or active equalization to equalize the voltage of the battery pack, which cannot simultaneously waste electric energy and reduce production costs.

Method used

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  • Active battery pack equalization charging system and charging method

Examples

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Embodiment 2

[0044] A method for equalizing charging of active battery packs, comprising the following steps:

[0045] S1. The balance controller collects the voltage information of each battery module in the battery pack;

[0046] S2. According to the collected voltage information, the controller judges the battery modules that need balanced charging;

[0047] S3. The controller sends an instruction to the drive switch assembly, and the drive switch assembly turns on the power supply and the transformer;

[0048] S4. The power supply charges the battery modules requiring balanced charging through the transformer.

[0049] When the active battery pack equalization charging method is adopted figure 2 In the active battery pack balancing charging system shown; in step S3, the steps for the controller to send instructions to the drive switch assembly are:

[0050] S301. The controller sends two PWM waveform signals A1 and A2 to the PMOS transistor and the NMOS transistor respectively;

...

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Abstract

The invention provides an active battery pack equalization charging system and charging method, and aims to solve the problems that in the prior art, an equalization circuit adopts passive equalization or active equalization to equalize the voltage of a battery pack, electric energy waste cannot be considered at the same time, and the manufacturing cost cannot be reduced. The active battery pack equalization charging system comprises an equalization controller, a controller, a driving switch assembly and a transformer. The method comprises the following steps: an equalization controller collects voltage information of each battery module in the battery pack;a controller judges and obtains the battery modules needing to be charged in a balanced mode according to the collected voltage information; the controller sends an instruction to the driving switch assembly, and the driving switch assembly conducts the power supply and the transformer; and the power supply charges the battery module needing equalized charging through the transformer. Active equalization is adopted to save electric energy, a charging system is independent of a discharging circuit, the structure is simplified, and the manufacturing cost is reduced.

Description

technical field [0001] The disclosure belongs to the technical field of electric vehicles, and in particular relates to an active battery pack equalization charging system and a charging method. Background technique [0002] With the continuous development of the new energy industry, the use of batteries in the entire electric vehicle industry is also increasing, and the requirements for batteries are also increasing; due to the inconsistent voltage of a single battery during the use of the battery pack, Will reduce the service life of the battery, therefore, cell balancing is very important in prolonging the service life of the battery pack. [0003] There are two main types of battery balancing at present: one is passive balancing, and the other is active balancing. Passive equalization consumes battery power through resistance power consumption, and adjusts the voltage of each battery module in the battery pack to balance, which is a waste of power. Active equalization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/441H01M2010/4271H02J7/0019Y02E60/10
Inventor 张伟峰程亚兵张轶
Owner 浙江高泰昊能科技有限公司
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