Information processing device and vehicle

An information processing device for predicting an output decrease amount of a fuel cell in a vehicle including the fuel cell and a drive source driven by electric power of the fuel cell, the information processing device comprising:

• an acquisition unit configured to acquire use history information indicating a use history of the vehicle for a plurality of items related to an output decrease of the fuel cell;
• a derivation unit configured to derive the output decrease amount for each of the items based on use history information acquired by the acquisition unit and output decrease characteristic information indicating an output decrease characteristic of the fuel cell for each of the items;
• a factor-specific output decrease amount estimation unit configured to estimate the output decrease amount for each of output decrease factors based on the output decrease amount for each of the items derived by the derivation unit and output decrease factor information indicating an output decrease factor of the fuel cell for each of the items;
• and
• a control unit configured to execute predetermined control based on the output decrease amount for each of the output decrease factors estimated by the factor-specific output decrease amount estimation unit, wherein
• the control unit executes processing of predicting a deterioration time at which an output decrease amount for any one of the output decrease factors is equal to or larger than a threshold value based on changes in the output decrease amount for each of the output decrease factors from start of use of the vehicle to present, and outputting information indicating the deterioration time.