CALCULATION SYSTEM, BATTERY CHARACTERISTIC ESTIMATION METHOD, AND BATTERY CHARACTERISTIC ESTIMATION PROGRAM

摘要

In a calculation system (1), a data acquiring unit (111) acquires the operation data of a battery including at least voltages, currents, and states of charge (SOCs) at a plurality of times, which are measured by a management device for managing the battery, said SOCs being estimated on the basis of at least one of the voltages and the currents. An extraction unit (112) extracts, as sample data, a combination of SOC and voltage in a period in which a battery specified on the basis of the currents is regarded to be in a resting state from the combinations of the SOCs and the voltages at the plurality of times included in the operation data. An estimation unit (113) estimates the SOC-open circuit voltage (OCV) characteristic of the battery on the basis of the extracted sample data.