Deterioration suppression system, deterioration suppression method, deterioration suppression program, and storage medium having deterioration suppression program written therein

A deterioration suppression method comprising:

• generating a histogram of a residence time of an SOC indicating a state of charge of a battery based on battery data;
• specifying, as an actual SOC use range, an SOC range that falls within a predetermined appearance probability from the histogram;
• calculating a recommended SOC use range in which deterioration is further suppressed than the actual SOC use range while referring to the deterioration characteristics of the battery based on the actual SOC use range and a statistical charge and discharge pattern based on the battery data;
• and
• generating a charge recommendation degree that increases or decreases in accordance with the SOC of the battery, the charge recommendation degree having a lower limit SOC of the recommended SOC use range as a charge start recommendation value and an upper limit SOC of the recommended SOC use range as a charge end recommendation value.

A non-transitory computer-readable recording medium storing a deterioration suppression program for causing a computer to execute a process of:

• generating a histogram of a residence time of an SOC indicating a state of charge of a battery based on battery data;
• specifying, as an actual SOC use range, an SOC range that falls within a predetermined appearance probability from the histogram;
• calculating a recommended SOC use range in which deterioration is further suppressed than the actual SOC use range while referring to deterioration characteristics of the battery based on the actual SOC use range and a statistical charge and discharge pattern based on the battery data;
• and
• generating a charge recommendation degree that increases or decreases in accordance with the SOC of the battery, the charge recommendation degree having a lower limit SOC of the recommended SOC use range as a charge start recommendation value and an upper limit SOC of the recommended SOC use range as a charge end recommendation value.