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Power battery heating system and heating control method and vehicle

A power battery and heating system technology, applied in battery temperature control, battery/fuel cell control devices, batteries, etc.

Active Publication Date: 2019-04-16
BAIC MOTOR CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above technical solutions can only maintain the temperature requirements of the power battery in a short period of time

Method used

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  • Power battery heating system and heating control method and vehicle
  • Power battery heating system and heating control method and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] figure 1 A schematic structural diagram of a power battery heating system provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, Embodiment 1 of the present invention provides a power battery heating system, including a power battery 1, a power battery management system and a heating component, the power battery management system and the heating component are connected to the power battery 1, and the power battery management system is used to obtain The temperature of the power battery 1, the heating component is used to heat the power battery 1; through the power battery management system to monitor the temperature of the power battery 1, and then determine whether it is necessary to heat the power battery 1, that is, to determine whether to start the heating component to heat the power battery 1 Heating operation.

[0056] The heating assembly includes a first heating system and a second heating system. When the power battery management sys...

Embodiment 2

[0079] figure 2 A schematic flow chart of the heating control method provided in Embodiment 2 of the present invention, such as figure 2 As shown, Embodiment 2 of the present invention provides a heating control method, including the following steps:

[0080] S101: Obtain the temperature of the power battery 1;

[0081] S102: controlling the first heating system to be turned on to heat the power battery 1;

[0082] S103: If the temperature of the power battery 1 does not reach the preset working temperature within the preset time, control the first heating system to turn off, and control the second heating system to turn on and heat the power battery 1 until the temperature of the power battery 1 reaches the preset temperature. set working temperature.

[0083]The premise of the heating requirement of the power battery 1 is the start of the power battery 1, that is, when the vehicle needs to start driving or charging when it is stationary, it will heat the power battery 1...

Embodiment 3

[0098] This embodiment also provides a vehicle, including the power battery heating system described in the first embodiment above.

[0099] Wherein, the structure and working principle of the power battery heating system have been described in detail in the first embodiment above, and will not be repeated here in this embodiment.

[0100] The vehicle provided by the embodiment of the present invention includes a power battery heating system. The power battery heating system includes a power battery, a power battery management system, and a heating assembly. The power battery management system and the heating assembly are connected to the power battery. The power battery management system is used to obtain power. The temperature of the battery, the heating component is used to heat the power battery; the heating component includes a first heating system and a second heating system, and the power battery management system controls the first heating system to turn on to heat the ...

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PUM

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Abstract

The invention provides a power battery heating system and heating control method and a vehicle. The power battery heating system comprises a power battery, a power battery management system and a heating component, wherein the power battery management system and the heating component are connected with the power battery; the power battery management system is used for obtaining the temperature ofthe power battery; the heating component is used for heating the power battery; the heating component comprises a first heating system and a second heating system; and the power battery management system controls the first heating system to be opened to heat the power battery. If the temperature of the power battery does not reach a preset working temperature within the preset time, the power battery management system controls the first heating system to be closed and controls the second heating system to be opened to heat the power battery until the temperature of the power battery reaches the preset working temperature. According to the embodiment of the invention, the first heating system and the second heating system are combined to meet the temperature rise requirement of the power battery in the severe environment for a long time.

Description

technical field [0001] The invention relates to the technical field of automobile batteries, in particular to a power battery heating system, a heating control method and a vehicle. Background technique [0002] With the continuous development of the new energy vehicle industry, various new energy vehicles are being launched continuously. Among them, the power battery as the main power source becomes the key to determine the performance of the vehicle. The volume and working efficiency of the battery directly affect the mileage of the vehicle. and power economy. [0003] At present, power batteries can operate effectively at room temperature, but their efficiency is low in extremely cold climates, and the decline in energy leads to a decline in vehicle performance, fuel economy, and power performance, that is, battery life in low temperature environments Poor capacity, not even usable. Among them, the temperature of the power battery may be affected by many factors. In the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/615H01M10/42H01M10/48H01M10/625H01M10/633H01M10/635H01M10/657H01M10/66B60L58/27
CPCH01M10/4257H01M10/486H01M10/615H01M10/625H01M10/633H01M10/635H01M10/657H01M10/66H01M2010/4271H01M2220/20Y02E60/10Y02T10/70Y02T10/72
Inventor 丛浩
Owner BAIC MOTOR CORP LTD