A method for testing the thermal management performance of a power battery system
A technology of power battery and testing method, which is applied in the direction of measuring electricity, measuring devices, measuring electric variables, etc., and can solve the problems of inability to evaluate the environmental adaptability of the power battery system, the inability to test the thermal management performance of the power battery system, and the inability to predict the power battery system Temperature adaptability and other issues, to achieve the effect of convenient use and simple test method
Active Publication Date: 2019-12-31
CHINA AUTOMOTIVE TECH & RES CENT +2
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Problems solved by technology
[0008] In view of this, the present invention aims to propose a method for testing the thermal management performance of the power battery system, so as to solve the problem that the existing methods cannot predict the temperature adaptability of the power battery system, cannot test the thermal management performance of the power battery system, and cannot be used for evaluating power. The environmental adaptability of the battery system provides the basis for evaluation and other issues
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[0059] Unless otherwise defined, the technical terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are conventional biochemical reagents; the experimental methods, unless otherwise specified, are conventional methods.
[0060] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.
[0061] A method for testing the thermal management performance of a power battery system, such as figure 1 As shown, including the low temperature working performance of the power battery system, the high temperature working performance of the power battery system and the temperature uniformity performance of the power battery system, and conduct a comprehensive evaluation;
[0062] The test method is as follows:
[0063] 1) Low temperature working performan...
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The invention provides a thermal management performance testing method for a power battery system, which comprises test on the low temperature working performance of the power battery system, the hightemperature working performance of the power battery system and the temperature uniformity performance of the power battery system and carries out comprehensive evaluation. The thermal management performance testing method for the power battery system is simple, the temperature adaptability of the power battery system can be predicted, the thermal management performance of the power battery system is tested, and a reliable assessment basis is provided for evaluating the environment adaptability of the power battery system. The testing method carries out comprehensive evaluation from the mostimportant aspects of the thermal management performance and the energy consumption and the like, the purpose of objective and scientific evaluation on the temperature adaptability of the power batterysystem is achieved, and further, the use convenience, the driving range, the service life and the like of a vehicle can be evaluated conveniently.
Description
technical field [0001] The invention belongs to the field of power battery performance testing and evaluation, and in particular relates to a power battery system thermal management performance testing method. Background technique [0002] Under the pressure of the energy crisis and carbon emission restrictions, new energy vehicles such as electric vehicles have gradually become the mainstream development direction of automobiles. However, at present, electric vehicles are still a product that is limited to regional use. In extremely hot and extremely cold regions, problems such as rapid life decay and insufficient mileage limit their use. For example, in the winter of 2011, the Foton "Midi" taxi In Yanqing, Beijing, the cruising range decreased and the acceleration was difficult. In 2012, Nissan Leaf encountered problems such as battery capacity fading in desert high temperature areas in Arizona, USA. [0003] On the whole, the impact of temperature changes on electric veh...
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IPC IPC(8): G01R31/36
CPCG01R31/385
Inventor 王芳刘磊任山周华林春景何兴韩丽琼石昊天
Owner CHINA AUTOMOTIVE TECH & RES CENT