STATE-OF-CHARGE ESTIMATING DEVICE, STATE-OF-CHARGE DETERMINING METHOD, AND STATE-OF-CHARGE DETERMINING PROGRAM

摘要

A state-of-charge estimating device includes an open-circuit voltage estimating part, a map selecting part, and a state-of-charge estimating part. The open-circuit voltage estimating part estimates an open-circuit voltage of a secondary battery. The map selecting part selects a map indicating a relationship between a first open-circuit voltage and a state of charge of the secondary battery, based on the first open-circuit voltage of the secondary battery fully charged. The state-of-charge estimating part estimates the state of charge corresponding to a second open-circuit voltage after estimating the first open-circuit voltage, based on the selected map.