Automobile lithium battery charging dynamic protection system based on empirical function and Internet

Abstract

The invention provides an automobile lithium battery charging dynamic protection system based on an empirical function and the Internet, and belongs to the technical field of battery charging protection, a dynamic second charging threshold voltage is generated by setting a loss empirical function, and the second charging threshold voltage can be adjusted according to the loss condition of a battery. The system can dynamically fit the actual condition of each battery, introduces a weight factor on the basis of setting a loss empirical function, enables the dynamic protection to be more accurate and more adaptive, and greatly improves the service life of the battery. In addition, the system can not be limited by time and space through the Internet technology, the charging information of the automobile lithium battery is obtained from an automobile BMS system in real time, the charging information obtaining efficiency is improved, and meanwhile the charging information obtaining cost is reduced.

Description

technical field [0001] The invention relates to the technical field of battery charging dynamic protection, in particular to an automotive lithium battery charging dynamic protection system based on empirical functions and the Internet. Background technique [0002] At present, batteries (such as mobile phone lithium batteries, automobile lithium batteries, lead-acid batteries, etc.) generally have charging protection functions and fast charging functions, but the current charging scheme generally uses the fast charging function to charge the battery to about 80%, and then uses slow charging. The way of charging is "charging protection", which can protect the rechargeable battery. [0003] However, on the one hand, the above functions only protect the rechargeable battery relatively rigidly, without considering the loss of the rechargeable battery itself, and the charging protection error is large, resulting in the inability to effectively charge the battery. On the other ha...

AI Technical Summary

Problems solved by technology

[0003] However, on the one hand, the above functions only protect the rechargeable battery relatively rigidly, without considering the loss of the rechargeable battery itself, and the charging protection error is large, resulting in the inability to effectively charge the battery. On the other hand, for automotive lithium batteries, it is necessary Charging piles are used for charging, and this method increases the burden of charging piles, especially for the popular charging piles, which also have power storage functions. When charging the lithium battery of a car, the charging voltage needs to be adjusted at any time, and adjusted at any time The charging power will undoubtedly cause damage to the charging pile itself, so the current "charging protection" is not perfect, and the charging protection for automotive lithium batteries only transfers the risk from the consumer to the charging pile manufacturer, and does not fundamentally solve the problem of charging protection. The problem

Images