Battery management system and method for initiative balance

A battery management system and active equalization technology, which is applied in battery circuit devices, secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve the problems of limited equalization effect and large battery inconsistency, and reduce the quantity And the effect of installing wire harness, convenient detection and prolonging service life

Inactive Publication Date: 2014-12-10
张泓 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the aging of the battery, the inconsistency between the single cells gradually becomes larger, and the effect of simple equalization is very limited

Method used

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  • Battery management system and method for initiative balance
  • Battery management system and method for initiative balance
  • Battery management system and method for initiative balance

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0034] The function of the battery management system is to realize the online monitoring of the battery status (for example, the temperature of the battery, the voltage of the single battery, the working current, the insulation between the battery and the battery box (rack), etc.), SOC (state of charge) estimation, status Analysis (whether the SOC is too high, whether the battery temperature is too high / low, whether the voltage of the single battery is too high / low, whether the temperature rise of the battery is too fast, whether the insulation is faulty, whether it is over-current, whether the consistency of the battery is analyzed, whether th...

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Abstract

The invention provides a battery management system used for initiatively balancing a battery pack. The cell management system comprises a battery parameter acquisition module and a controllable bidirectional power supply module; the battery parameter acquisition module is used for detecting condition parameters of each battery of the battery pack; the controllable bidirectional power supply module conducts initiative balancing on the battery pack by charging and discharging the impulse of the batteries according to the condition parameters of the batteries of the battery pack. The invention further provides an initiative balancing method.

Description

technical field [0001] The invention relates to the management of vehicle-mounted battery packs, in particular to an active balancing battery management system and method for battery packs. Background technique [0002] With the increasingly serious problem of energy shortage and environmental pollution, the development and utilization of new energy has been paid more and more attention by the governments of various countries. In the new energy system, the battery system is an indispensable and important part. In recent years, electric bicycles, hybrid vehicles, electric vehicles, and fuel cell vehicles powered by lithium batteries have received more and more attention from the market. my country attaches great importance to the development of electric vehicles. As early as 1992, the development and development of electric vehicles was included in the national "Eighth Five-Year Plan" key scientific and technological projects, and long-term and in-depth research and developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/10
Inventor 张泓阮浩王德斌
Owner 张泓
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