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Battery energy processing device, method and vehicle

A battery energy and processing device technology, which is applied in battery/fuel cell control devices, control electromechanical transmission devices, electric vehicles, etc., and can solve problems such as unusable batteries

Active Publication Date: 2020-10-23
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the condition of -30℃, the discharge capacity of the battery is basically 0, which makes the battery unusable

Method used

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  • Battery energy processing device, method and vehicle
  • Battery energy processing device, method and vehicle
  • Battery energy processing device, method and vehicle

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Experimental program
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Embodiment Construction

[0017] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, but not to limit the present application.

[0018] like figure 1 As shown, the battery energy processing device may include: a bridge arm converter 20, the first bus terminal of the bridge arm converter 20 is connected to the positive electrode of the battery 10, and the second bus end of the bridge arm converter 20 is connected to the battery 10. The negative pole is connected; the motor winding 30, the first end of the motor winding 30 is connected with the midpoint of the bridge arm converter 20; the energy storage element 40, the energy storage element 40 is respectively connected with the second end of the motor winding 30 and the second end of the The bus terminal is connected; the controller 50 is co...

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Abstract

The present application relates to a battery energy processing device, method and vehicle. The battery energy processing device includes: a bridge arm converter, the first bus terminal of the bridge arm converter is connected to the positive pole of the battery, the second bus terminal of the bridge arm converter is connected to the negative pole of the battery; a motor winding, the motor winding The first end is connected to the midpoint of the bridge arm converter; the energy storage element is connected to the second end and the second bus end of the motor winding respectively; the controller is configured to operate in the first preset state , by controlling the bridge arm converter, the battery is charged and discharged to achieve battery heating. In this way, the charging and discharging of the battery can be controlled. Due to the existence of the internal resistance of the battery, the battery itself will generate a large amount of heat, causing the battery to heat up and achieve battery heating.

Description

technical field [0001] The present application relates to the battery field, in particular, to a battery energy processing device, method and vehicle. Background technique [0002] With the widespread use of new energy sources, batteries can be used as power sources in various fields. Depending on the environment in which the battery is used as a power source, the performance of the battery will also be affected. For example, the performance of a battery in a low temperature environment will be reduced to a greater extent than that at normal temperature. For example, at zero temperature, the discharge capacity of the battery will decrease as the temperature decreases. Under the condition of -30°C, the discharge capacity of the battery is basically 0, making the battery unusable. In order to be able to use the battery in a low temperature environment, the battery needs to be heated. Contents of the invention [0003] The purpose of the present application is to provide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/27B60L53/24B60L53/22H01M10/615H01M10/625H01M10/63H01M10/667H02P21/05
CPCB60L58/27B60L53/24B60L53/22H01M10/615H01M10/625H01M10/63H01M10/667H02P21/00Y02T10/70Y02T10/7072Y02T90/14Y02E60/10Y02T10/64H02P29/62H02P2209/01B60L2210/30B60L2210/42B60L2210/14H01M10/637H01M10/44B60L2240/529B60L2240/527H02P27/06
Inventor 廉玉波凌和平潘华闫磊谢飞跃
Owner BYD CO LTD