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

A battery thermal management and power supply system technology, applied in electric vehicles, battery/fuel cell control devices, power management, etc., can solve the problem of battery temperature adjustment modules not working, achieve compact structure, reduce the impact of charge and discharge performance, The effect of improving applicability

Active Publication Date: 2019-07-16
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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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 of the battery thermal management power supply system. The battery thermal managementpower supply system comprises a power battery pack, a battery temperature regulation module, a DC-DC conversion module, a charging control module and a battery manager; the battery temperature regulation module is used for conducting cooling / heating operation on the power battery pack; the DC-DC conversion module is used for converting a high-voltage direct current into a low-voltage direct current for supplying power to the battery temperature regulation module; the charging control module is connected with the DC-DC conversion module and the power battery pack and used for rectifying an alternating current into the high-voltage direct current; and the battery manager is connected with the battery temperature regulation module, the DC-DC conversion module and the charging control moduleand used for controlling the charging control module to charge the power battery pack or supply the power to the battery temperature regulation module according to the temperature information of the power battery pack, and controlling the battery temperature regulation module to conduct cooling / heating operation. According to the power supply system, the influence of the external climate environment on charging performance of the power battery pack is lowered, and the applicability of the power battery pack is improved.

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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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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