Power battery fault diagnosis method and system based on data driving
A fault diagnosis system and power battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of diversity of diagnostic objects, complexity of fault states, weak adaptability, and failure to meet new energy vehicle power battery fault diagnosis demand and other issues
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[0073] The present invention will be described in detail below in conjunction with lithium iron phosphate batteries. In specific embodiments of the present invention, current common methods are used for the calculation of SOC and SOH of power batteries, and different calculation methods can be used in different embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0074] A data-driven power battery fault diagnosis method provided according to the present invention includes:
[0075] Step 1: Collect the performance parameters of the lithium iron phosphate battery under various working conditions and various states of the lithium iron phosphate batt...
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