BATTERY PACK-RELATED TEMPERATURE PREDICTION METHOD AND BATTERY PACK-RELATED TEMPERATURE PREDICTION APPARATUS

摘要

PROBLEM TO BE SOLVED: To accurately predict a battery pack-related temperature.SOLUTION: Provided is a method of predicting a battery pack-related temperature by a thermal fluid analysis software. The method comprises: a model creating step S10 of creating a solid interior model 4 obtained by dividing a solid part in contact with air within a battery pack into a plurality of cells to form the model 4; a gas temperature acquiring step S35 of acquiring a temperature of the air adjacent to each cell of the solid internal model 4 as a gas temperature Ta on the basis of measurement data 9 relating to a temperature change within the battery pack acquired by measurement in advance; and a temperature calculating step S45 calculating a heat transfer quantity for each cell of the solid internal model 4 by an unsteady analysis using the gas temperature Ta acquired in the gas temperature acquiring step S35, and calculating a temperature on the basis of the heat transfer quantity.SELECTED DRAWING: Figure 3