Intelligent charging system and charging method applied to power battery

An intelligent charging method and power battery technology, applied in secondary battery charging/discharging, battery circuit devices, electric vehicle charging technology, etc., can solve problems such as inaccurate control of the charging stage

Active Publication Date: 2015-11-25
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the defect that the control of each charging stage in the existing

Method used

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  • Intelligent charging system and charging method applied to power battery
  • Intelligent charging system and charging method applied to power battery
  • Intelligent charging system and charging method applied to power battery

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Embodiment Construction

[0066] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment in the implementation of the present invention.

[0067] The present invention provides an intelligent charging system applied to power batteries, such as figure 1 As shown, it consists of AC conversion module, rectification and filtering module, voltage stabilization module, DC-DC module (controlling the output voltage through PWM wave), voltage detection module, voltage A / D conversion module, controllable current output module (through PWM wave Control output current), current detection module, current A / D conversion module, DC filter module, main controller module, relay control module, relay, battery management system, communication module and data storage module.

[0068] The AC conversion module, the rectification filter module, the DC-DC module, the controllable current output module, the DC filter module and the relay are connected in s...

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Abstract

The invention discloses an intelligent charging system and charging method applied to a power battery. A 4-stage charging method is adopted, namely trickle charge; multi-stage constant current-constant voltage alternative charge; constant voltage charge and floating charge. A charging control system that automatically adjusts charging current and charging voltage, that is a control system of the invention, is used for distinguishing voltage and current thresholds, an equalizing charge condition, a charging terminal condition and the real-time acquired battery pack temperature, battery pack total voltage, single maximum and minimum voltage and the like of each charging stage according to a battery specification transmitted by a battery management system, and can automatically switch charging stages according to different conditions of practical batteries and different conditions of different batteries and so on, so that each charging stage in the charging process can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to an intelligent charging system and charging method applied to power batteries. Background technique [0002] At present, with the development of industry and the increase of social demand, automobiles are playing an increasingly important role in social life. With the emergence of serious problems such as energy shortage, industrial pollution, and automobile exhaust, it is urgent to find new ways to develop the automobile industry. The emergence of electric vehicles is in line with this demand. The battery is the power source of the electric vehicle, and its performance determines the driving range of the electric vehicle. However, in the short term, it is difficult to break through technical bottlenecks such as low battery storage, limited charging times, long charging time, high price, short cruising range, and low energy density. Therefore, the key point of ...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44B60L11/18
CPCY02E60/10Y02T10/70Y02T10/72Y02T90/16
Inventor 张向文于振红许勇党选举伍锡如莫太平潘明任风华徐金龙
Owner GUILIN UNIV OF ELECTRONIC TECH
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