Vehicle battery abnormity identification method and device

Vehicle battery abnormity identification method and device

The invention provides a vehicle battery abnormity identification method and device. The method comprises the following steps: determining or calculating a plurality of characteristics of each piece of battery data; calculating a covariance matrix according to the plurality of characteristics of eac...

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Hauptverfasser: SHI JUNCHEN, MOU YUNFEI, LI WEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator SHI JUNCHEN
MOU YUNFEI
LI WEI
description The invention provides a vehicle battery abnormity identification method and device. The method comprises the following steps: determining or calculating a plurality of characteristics of each piece of battery data; calculating a covariance matrix according to the plurality of characteristics of each piece of battery data, and deleting battery data with low correlation with other battery data according to the covariance matrix; a label of each piece of battery data is determined according to the abnormity occurrence moment, one piece of battery data carrying the label is used as a training sample, a training sample set is obtained, and the label of one piece of battery data is whether the piece of battery data is abnormal or not and the abnormity category; training a random forest model by using training samples in the training sample set through a method of calculating a Gini coefficient and a Gini index; and using the trained random forest model to identify whether the vehicle battery is abnormal or not and
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subjects CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Vehicle battery abnormity identification method and device
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