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Power battery pack control method and power battery pack

A power battery pack and control method technology, which is applied in the field of power battery pack control and power battery packs, to achieve the effects of improving discharge efficiency, good power supply effect, and improving service life

Pending Publication Date: 2022-03-01
深圳绿威科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The invention aims to solve the technical problem of how to improve the discharge efficiency of the battery pack

Method used

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  • Power battery pack control method and power battery pack
  • Power battery pack control method and power battery pack

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

[0033] In the description of this specification, descriptions with reference to the terms "an embodiment", "an embodiment" and "an implementation" mean that the specific features, structures, materials or characteristics described in conjunction with the embod...

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Abstract

The invention provides a power battery pack control method and a power battery pack, and the power battery pack control method comprises the steps: obtaining the power supply capability of a first battery pack and a second battery pack which are connected in parallel, the power supply capability comprising residual capacity and on-load voltage; according to the power supply capacity, a main discharge pack and an auxiliary discharge pack in the first battery pack and the second battery pack are determined, and the main discharge pack is suitable for supplying power to a load independently or supplying power to the load together with the auxiliary discharge pack; and when the auxiliary discharge pack supplies power to the load together, controlling the discharge current of the auxiliary discharge pack to be increased from low discharge current to high discharge current. The method has the beneficial effect that the discharging efficiency of the battery pack can be improved.

Description

technical field [0001] The present invention relates to the technical field of batteries, in particular to a power battery pack control method and a power battery pack. Background technique [0002] In the application scenarios of power battery packs, for example, when powering loads such as power tools, most of the cells in the battery pack are in a high discharge rate environment. It is the strongest. When the battery cell is discharged to a certain voltage point below the rated voltage, the battery cell is easily pulled down to the undervoltage protection state of the battery pack by the large load current discharge. At this time, the power tool will stop working, and the battery cell will A considerable part of the electricity cannot be released, which eventually leads to a decrease in the total discharge efficiency of the battery pack. Contents of the invention [0003] The invention aims to solve the technical problem of how to improve the discharge efficiency of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42
CPCH02J7/0048H02J7/00712H02J7/0031H02J7/0063H01M10/42Y02E60/10
Inventor 李保华
Owner 深圳绿威科技有限公司
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