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Electric vehicle, battery thermal management power supply system and control method thereof

A technology of battery thermal management and power supply system, applied in electric vehicles, battery/fuel cell control devices, power management and other directions, can solve the problem of battery temperature adjustment module not working, achieve compact structure, improve applicability, reduce charging and discharging The effect of performance impact

Active Publication Date: 2021-02-23
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the temperature of the power battery is lower than -20°C or higher than 55°C, the battery temperature regulation module will not work

Method used

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  • Electric vehicle, battery thermal management power supply system and control method thereof
  • Electric vehicle, battery thermal management power supply system and control method thereof
  • Electric vehicle, battery thermal management power supply system and control method thereof

Examples

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] The following describes the battery thermal management power supply system, the electric vehicle and the control method of the battery thermal management power supply system according to the embodiments of the present invention with reference to the accompanying drawings.

[0033] figure 1 is a schematic structural diagram of a battery thermal management power supply system according to an embodiment of the present invention. Such as figure 1 As shown, the battery thermal management power supply system includes: a power ...

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Abstract

The invention discloses an electric vehicle, a battery thermal management power supply system and a control method thereof, wherein the system includes: a power battery pack; a battery temperature adjustment module for cooling / heating the power battery pack; a DC-DC conversion module , used to convert high-voltage direct current into low-voltage direct current to supply power to the battery temperature regulation module; the charging control module connected to the DC-DC conversion module and the power battery pack respectively, used to rectify the alternating current into high-voltage direct current; and the battery temperature regulation module respectively module, DC‑DC conversion module and the battery manager connected to the charging control module, used to control the charging control module to charge the power battery pack or supply power to the battery temperature regulation module according to the temperature information of the power battery pack, and to control the battery temperature regulation module. cooling / heating operation. The power supply system reduces the impact of the external climate environment on the charging performance of the power battery pack, and improves the applicability of the power battery pack.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a battery thermal management power supply system, an electric vehicle and a control method for the battery thermal management power supply system. Background technique [0002] At present, electric vehicles are mainly powered by power batteries, and the charging and discharging performance of power batteries is greatly affected by the climate environment. Cold or hot climates will have a greater impact on the charging or discharging of the power battery of the electric vehicle. [0003] For areas with a hot climate environment, the power battery needs to be cooled; for areas with a cold climate environment, the power battery needs to be heated; and for areas with hot summer and cold winter, it is necessary to be able to take into account both heating and cooling of the power battery. cool down. [0004] At present, the battery temperature adjustment module used to hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/26B60L58/27
CPCB60L58/10B60L58/26B60L58/27Y02T10/72Y02T10/70
Inventor 伍星驰谈际刚王洪军
Owner BYD CO LTD
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