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Energy processing device and method, and vehicle

A technology for energy processing and energy storage components, applied in the field of vehicles, can solve the problem of unusable battery packs, and achieve the effect of ensuring cruising range and reducing costs

Pending Publication Date: 2021-12-07
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°C, the discharge capacity of the battery pack is basically 0, making the battery pack unusable

Method used

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  • Energy processing device and method, and vehicle
  • Energy processing device and method, and vehicle
  • Energy processing device and method, and vehicle

Examples

Experimental program
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Embodiment Construction

[0077] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0078] figure 1 It is a structural block diagram of an energy processing device 100 according to an exemplary embodiment of the present disclosure. Such as figure 1 As shown, the device 100 includes: a bridge arm converter 10, the first confluence terminal of the bridge arm converter 10 is connected to the positive pole of the battery 200, and the second confluence terminal of the bridge arm converter 10 is connected to the The negative pole of the battery 200 is connected; the motor winding 20, the first end of the motor winding 20 is connected to the midpoint of the bridge arm converter 10, and the second end of the motor winding 20 is connected together ...

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Abstract

The invention relates to an energy processing device and method and a vehicle. The device comprises a controller which controls a first switch to be switched on in a first preset state, controls a bridge arm converter to enable a first energy storage element and a battery to be charged and discharged so as to achieve the heating of the battery, and controls a voltage stabilization module to be switched on, and when a voltage at two ends of the first energy storage element is lower than a voltage of external power supply equipment, the first energy storage element receives external energy through the voltage stabilization module for charging, so the voltage of the first energy storage element is consistent with the voltage of the external power supply equipment. The device is advantaged in that it can be guaranteed that the first energy storage element can supplement the electric quantity lost in the battery heating process in time in the mode that the first energy storage element is charged through external power supply equipment, and therefore the electric quantity of the battery does not decrease in the battery heating process, that is, the endurance mileage of the battery can be guaranteed while the battery is heated, and by utilizing elements existing in the vehicle, cost for heating the battery is reduced.

Description

technical field [0001] The present disclosure relates to the field of vehicles, and in particular, relates to an energy processing device, method and vehicle. Background technique [0002] With the widespread use of new energy sources, battery packs can be used as power sources in various fields. Depending on the environment in which the battery pack is used as a power source, the performance of the battery pack will also be affected. For example, the performance of a battery pack 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 pack will decrease as the temperature decreases. Under the condition of -30°C, the discharge capacity of the battery pack is basically 0, making the battery pack unusable. In order to be able to use the battery pack in a low temperature environment, it is necessary to preheat the battery pack before using it. Contents of t...

Claims

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Application Information

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IPC IPC(8): B60L58/27B60L53/20B60L50/40H02J7/00
CPCB60L58/27B60L53/20B60L50/40H02J7/0063H02J2207/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 潘华熊永刘俊华谢飞跃邱嵩
Owner BYD CO LTD
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