| CPC B60L 58/12 (2019.02) [B60L 53/62 (2019.02); B60L 58/16 (2019.02); B60L 55/00 (2019.02)] | 9 Claims |

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1. A charging and discharging control device that controls a charging and discharging device that charges and discharges an on-vehicle battery mounted on an electric vehicle, the charging and discharging control device comprising:
a detection controller configured or programmed to detect that the electric vehicle has been connected to the charging and discharging device;
an SOC acquisition controller configured or programmed to acquire an SOC of the on-vehicle battery of the electric vehicle connected to the charging and discharging device;
a use information acquisition controller configured or programmed to acquire a next use time and a next travel distance of the electric vehicle connected to the charging and discharging device; and
a setting controller configured or programmed to set a charging and discharging schedule of the on-vehicle battery of the electric vehicle such that the on-vehicle battery is charged after having been maintained in a low SOC and a necessary SOC for the next use time and the next travel distance remains in the on-vehicle battery,
the setting controller being configured or programmed to set the charging and discharging schedule of the on-vehicle battery such that a shortfall of electric power is charged to the on-vehicle battery immediately before the next use time.
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