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Battery balancing device, automobile battery balancing system and balancing method

A battery balancing and automotive battery technology, applied in charge balancing circuits, battery circuit devices, electric vehicle charging technology, etc. The effect of driving mileage and volume reduction

Active Publication Date: 2017-02-15
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] Due to the inconsistency of the power battery pack, the available power and capacity utilization of the battery pack are reduced, which shortens the mileage of pure electric vehicles and limits the promotion and use of pure electric vehicles.
The existing resistance dissipation equalization method that has basically realized industrialization is only suitable for suppressing the voltage rise of the strongest battery unit in the charging mode at the cost of consuming battery energy, and is only suitable for small-capacity battery systems, not suitable for electric vehicles. car

Method used

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  • Battery balancing device, automobile battery balancing system and balancing method
  • Battery balancing device, automobile battery balancing system and balancing method
  • Battery balancing device, automobile battery balancing system and balancing method

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Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0031] refer to figure 1 , The embodiment of the present invention provides a battery balancing device, comprising: a balancing structure 1 for controlling the power balance of a plurality of battery cells of the battery pack 4; a display screen...

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Abstract

The invention provides a battery balancing device, an automobile battery balancing system and a balancing method. The battery balancing device comprises a balancing structure, a display screen and a first harness port, wherein the balancing structure is used for controlling a plurality of single batteries of a battery pack to perform electric quantity balancing, the display screen is used for displaying a working condition of the battery pack, the first harness port is used for connecting the battery pack and a battery management system BMS of an automobile, and the balancing structure and the display screen are respectively connected with the first harness port. The battery balancing device is arranged independent to the automobile, thus, the battery pack of the automobile can be balanced at any time, and the volume of the battery management system in the automobile is reduced; and the balancing structure is used for balancing electric quantity of the plurality of single batteries of the battery pack, thus, the situation that the charging is stopped caused by excessively fast voltage rise of a certain single battery during the charging process is further prevented, more energy is released by the battery pack during the starting process of the automobile, and the travelling range of an electric vehicle is extended.

Description

technical field [0001] The invention relates to the field of automobile battery equalization, in particular to a battery equalization device, an automobile battery equalization system and an equalization method. Background technique [0002] Due to the inconsistency of the power battery pack, the available power and capacity utilization rate of the battery pack are reduced, which shortens the mileage of pure electric vehicles and limits the promotion and use of pure electric vehicles. The existing resistance dissipation equalization method that has basically realized industrialization is only suitable for suppressing the voltage rise of the strongest battery unit in the charging mode at the cost of consuming battery pack energy, and is only suitable for small-capacity battery systems, not suitable for electric vehicles. car. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to provide a battery balancing d...

Claims

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Application Information

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IPC IPC(8): H02J7/00B60L11/18
CPCB60L53/00B60L58/12B60L58/22H02J7/0016H02J7/0047H02J7/0048Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 贺虹刘立志蒋荣勋魏跃远
Owner BEIJING ELECTRIC VEHICLE
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