| 摘要 |
A navigation device includes: a degradation coefficient determination unit that determines a degradation coefficient representing a degradation level of a battery that supplies a vehicle with electric power; a current location calculation unit that calculates a current location of the vehicle; a vicinity map display unit that displays a vicinity map of the current location of the vehicle on a display screen; a cruising range calculation unit that calculates a first cruising range of the vehicle based on a remaining amount of the battery and a full charge amount of the battery contained in charging information received from the battery; a second cruising range calculation unit that calculates a second cruising range, which is smaller than the first cruising range, based on the degradation coefficient and the first cruising range; and a cruising range display unit that performs a display representing the second cruising range on the vicinity map. |
