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Battery pack management system and battery pack management method

A technology for battery pack management and single cells, applied in battery/fuel cell control devices, secondary batteries, secondary battery repair/maintenance, etc., can solve problems affecting the normal operation of the battery pack and the failure of the battery pack to work normally

Inactive Publication Date: 2018-04-03
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the difference between the performance of the single battery and the actual use capacity of the battery pack connected in series, as the number of charge and discharge increases, the "bucket effect" of a single battery is prone to occur, resulting in the failure of the battery pack to work normally, and it is also easy to affect the entire battery due to the damage of a single battery normal work of the group

Method used

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  • Battery pack management system and battery pack management method
  • Battery pack management system and battery pack management method

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Embodiment 1

[0047] Embodiment 1. A battery pack management system. Combine below figure 1 The system provided in this embodiment will be described.

[0048] see figure 1, the battery pack management system provided in this embodiment includes a battery pack composed of n single cells in series and a main circuit composed of a resistive load R, and also includes a temperature detection device, a temperature parameter conditioning circuit, an optocoupler relay array, a voltage sensor, A current sensor, a main control chip, at least one relay logic control circuit, a drive circuit, a control switch and a display panel. The temperature detection device includes n temperature sensors, and each temperature sensor is arranged on a corresponding single battery for detecting the working temperature of the corresponding single battery; each temperature sensor is connected with a temperature parameter conditioning circuit, and is used to It is used to send the detected operating temperature of th...

Embodiment 2

[0054] Embodiment 2, a battery pack management method. Combine below figure 2 The method provided in this embodiment is described.

[0055] see figure 2 , the method provided in this embodiment includes: S1. A temperature sensor arranged on each single battery detects the operating temperature of each single battery, and an optocoupler relay connected in parallel with each single battery detects the operating voltage of each single battery, and connects them in series The current sensor in the main circuit detects the working current of each single battery, and sends the working temperature, working voltage and working current of each single battery to the main control chip.

[0056] Specifically, each temperature sensor is connected to the temperature parameter conditioning circuit, and each temperature sensor sends the detected working temperature of the corresponding single battery to the main control chip through the temperature parameter conditioning circuit; each opt...

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Abstract

The invention discloses a battery pack management system and a battery pack management method. The system comprisesa battery pack composed of n single batteries which are connected in series, and a main circuit composed of a resistive load R, and further comprises a temperature detection device, a temperature parameter regulation circuit, an optical coupler relay array, a pressure sensor, a current sensor, a main control chip, at least one relay logic control circuit, a first driving circuit, a second driving circuit, a control switch and a display panel. The battery pack management system can be used for detecting working parameters of each single battery of the battery pack, and estimating a residual capacity SOC index and an SOH health index of each single battery; when the working parameters of each single battery are abnormal, the single battery is regulated and protected, so that phenomena that a bucket effect of each single battery occurs so that normal work of the whole battery pack is influenced and the whole battery pack is damaged is avoided.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a battery pack management system and a battery pack management method. Background technique [0002] The performance of the battery directly affects the maneuverability and combat effectiveness of the weapon system. At present, the following problems exist in the use of the vehicle-mounted series battery pack: [0003] Due to the difference between the performance of the single battery and the actual use capacity of the battery pack connected in series, as the number of charge and discharge increases, the "bucket effect" of a single battery is prone to occur, resulting in the failure of the battery pack to work normally, and it is also easy to affect the entire battery due to the damage of a single battery normal work of the group. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a battery pack management s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48B60L11/18
CPCB60L58/10H01M10/4207H01M10/482H01M10/486Y02E60/10Y02T10/70
Inventor 张建国张向东鲁卫东乔良刘千寿徐鹏飞吴付栓陈远江康晓慧鲁飞刘俊邦郭伟剑王帅李涛华鹏翔
Owner ARMY ENG UNIV OF PLA
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