A heating method and device for a power battery and an electric vehicle
A technology of power battery and heating method, applied in the direction of battery, secondary battery, secondary battery repair/maintenance, etc., can solve the problems of long heating time and uneven heat distribution, and achieve the effect of good consistency and uniform heat distribution
Active Publication Date: 2019-11-05
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0005] The invention provides a heating method and device for a power battery and an electric vehicle, which are used to solve the problem of uneven heat distribution or too long heating time in the heating process of the power battery in the prior art
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[0043] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0044] Such as figure 1 As shown, an embodiment of the present invention provides a heating method for a power battery, and the heating method for a power battery includes:
[0045] S11. Obtain temperature information when the power battery is heated by the first preset power;
[0046] It should be noted that the first preset power is used to heat the power battery to increase the temperature of the power battery. The first preset power can b...
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The invention provides a heating method and a device of a power battery as well as an electric automobile. The heating method of the power battery comprises the steps of obtaining temperature information when the power battery is heated through a first preset power; when the temperature information matches the first preset information, using a second preset power to heat the power battery, whereinthe second preset power is less than the first preset power; and updating temperature information of the power battery, and when the updated temperature information matches the second preset information, stopping heating the power battery. According to the heating method of the power battery, the power battery is heated in segments by different powers, so that during a process of heating the power battery, heat distribution is relatively uniform, and has good consistency.
Description
technical field [0001] The invention relates to the field of power batteries, in particular to a heating method and device for a power battery and an electric vehicle. Background technique [0002] Automobiles are one of the important means of transportation for human beings. With the progress of the times, the per capita ownership of automobiles in China continues to increase, and they have entered thousands of households. Electric vehicles driven by power batteries are used for their environmental protection. features are becoming more and more popular. [0003] One of the core components of an electric vehicle is the power battery that provides power. In order to enable the power battery to charge and discharge better and prolong the service life of the power battery, under normal circumstances, the power battery needs to be adjusted during the driving of the electric vehicle. for heating. [0004] The traditional method of heating the power battery is generally to use ...
Claims
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IPC IPC(8): H01M10/42H01M10/48H01M10/615H01M10/625H01M10/635
CPCH01M10/42H01M10/486H01M10/615H01M10/625H01M10/635H01M2220/20Y02E60/10
Inventor 马淑倩陈卓杨重科韩广璞
Owner BEIJING ELECTRIC VEHICLE