The invention relates to the technical field of battery fault detection, and particularly discloses a
new energy automobile battery fault intelligent diagnosis method and
system, and the method comprises the steps: collecting the three-dimensional
time sequence data flow of the
voltage, temperature and
internal resistance of a
battery pack through a distributed
sensor array; the environment temperature, the number of
charge and discharge cycles and the vehicle operation condition parameters are synchronously integrated as auxiliary diagnosis dimensions, and a multi-source heterogeneous data
sensing system is constructed; the method comprises the following steps: preprocessing
original data by adopting a dual-channel
hybrid filtering architecture based on a multi-source heterogeneous data
sensing system, and establishing an adaptive filtering parameter adjustment mechanism to generate multi-
modal data; according to the method, multi-dimensional
time sequence data and auxiliary diagnosis parameters of the
battery pack are comprehensively collected through a constructed multi-source heterogeneous data
sensing system, a rich and accurate data basis is provided for fault diagnosis,
noise interference is reduced through a two-channel
hybrid filtering architecture and a self-adaptive filtering parameter adjustment mechanism, and the fault diagnosis accuracy is improved. And a
solid foundation is laid for subsequent
feature extraction and model training.