Power battery management system and matching method
A management system and power battery technology, applied in the direction of secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve the problem that it is difficult to replace other types of module batteries separately, and achieve the level of performance without affecting , The effect of reducing after-sales costs
Active Publication Date: 2021-02-23
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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[0009] The purpose of the present invention is to provide a power battery management system and matching method to solve the technical problem that it is difficult to replace the module cells of other types of modules in the prior art.
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[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the invention, not to limit the invention.
[0058]The power battery management system proposed in the present invention is based on the module series battery pack platform, through the redevelopment of the functions of the power battery management system BMS, basic requirements are put forward for the matching of other types of modules, and new other types of modules are required. A matching method is proposed for the characteristic performance parameters of type module cells, and finally realize that after replacing individual module cells in the old battery pack with new and other types of module cells, the performance of the whole package, such as SOC and...
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The invention relates to the technical field of electric vehicles, in particular to a power battery management system and a matching method. The invention provides a power battery management system, and the system comprises a characteristic parameter module, wherein the characteristic parameter module is matched with and corresponds to a module battery cell; when the module battery cells are replaced, the characteristic parameter module selects the corresponding characteristic parameters, and the characteristic electrical performance parameters of the new module battery cells are adjusted to meet the requirements of the old battery pack. According to the matching method of the power battery management system provided by the invention, adaptive innovative function development is carried outon the power battery management system, so individual module cells in an old battery pack are replaced by new other types of module cells, the matching calibration test cost and time do not need to be increased, the performance level of the battery pack is not influenced, and the after-sales cost is reduced.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, and more specifically, to a power battery management system and a matching method. Background technique [0002] With the rapid development of the new energy automobile industry, the replacement speed of electric vehicle models is relatively fast. Although most OEMs have developed their own battery pack platform products, the module level still needs to be constantly updated, including the following two aspects: [0003] On the one hand, it comes from the passive replacement demand brought about by the continuous upgrading of battery technology, and on the other hand, it comes from the active replacement demand brought about by the secondary supply development of the battery module supplier of the OEM. [0004] However, with the update of modules, there will be models equipped with battery packs of different types of modules from a certain OEM in the market. After these models enter th...
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IPC IPC(8): H01M10/42G01R31/367G01R31/382G01R31/392G01R31/396
CPCH01M10/425G01R31/382G01R31/367G01R31/396G01R31/392H01M2010/4271Y02E60/10
Inventor 陈波徐宁袁兼宗于旭东
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD