This invention discloses a method, device,
system, and storage medium for predicting
electric vehicle charging time, including: establishing a
scatter plot of the vehicle's power distribution, a power
interval distribution plot with 10kW intervals, and a power
interval distribution plot with 1kW intervals, and analyzing them to obtain the boundary lines between
fast charging and slow charging, and between supercharging and
fast charging; based on the boundary lines between
fast charging and slow charging, and between supercharging and fast charging, classifying the vehicle's historical charging data into slow charging data, fast charging data, and supercharging data; step S3, establishing a slow charging model, a fast charging model, and a supercharging model based on the slow charging data, fast charging data, and supercharging data; and predicting the possible charging mode when the vehicle arrives at any
charging station based on the vehicle's historical charging and current charging geographical location information,
time information, and driver driving model information. Using the technical solution of this invention, the charging time of electric vehicles can be predicted more accurately.