Low-voltage battery failure prediction method based on new energy vehicle memory card data
A technology for low-voltage batteries and new energy vehicles, which is applied in vehicle energy storage, registration/indication of vehicle operation, batteries, etc., and can solve the problem of unobtainable, difficult to know the specific time and frequency of detection, and the inability to continuously test multiple batteries and other issues to achieve good real-time results
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[0038] One embodiment of the present invention is aimed at the EV200 new energy passenger car. The low-voltage storage battery failure prediction method based on the new energy vehicle memory card data proposed by the present invention is characterized in that the voltage change data and standard threshold curve results transmitted in real time are used. Carrying out corresponding fault prediction and diagnosis analysis, the method includes the following steps:
[0039]1) Collect all driving data samples transmitted in real time to the data testing center in the memory card of the T-BOX system carried by various types of new energy vehicles, including the voltage change data of the low-voltage battery on the vehicle during the entire operating mileage of the new energy vehicle;
[0040] 2) Perform data statistics and mining on the voltage change data of the on-board low-voltage battery collected in step 1), and obtain the basis for subsequent fault prediction and judgment of va...
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