Information processing system, control device, and vehicle power supply system

Abstract

Based on gradient information included in road information on a path scheduled to be traveled by an electric vehicle, a section divider divides the path into multiple sections. A discharge-plan-candidate deriving unit derives multiple discharge plans defined by a combination of a target SOC of a secondary battery at the time of departure and a target SOC at the time of arrival at a destination, based on required capacity of the secondary battery. A section deterioration-amount calculator calculates a deterioration rate or an amount of deterioration of the secondary battery in each of the sections based on an SOC usage range and an output current of the secondary battery in the corresponding one of the sections with reference to a discharge deterioration map defining a relationship between a combination of the SOC usage range in the corresponding one of the sections and a discharge rate, and the deterioration rate of the secondary battery. A discharge plan selector selects a discharge plan minimizing a total deterioration rate or the amount of deterioration from among the multiple discharge plans.