VEHICULAR TRAVEL GUIDANCE DEVICE, VEHICULAR TRAVEL GUIDANCE METHOD, AND COMPUTER PROGRAM
First Claim
1. A vehicular travel guidance device comprising:
- a map image display unit that displays a map image on a display device;
a maximum energy amount acquisition unit that acquires a maximum charging energy amount of an in-vehicle battery of a vehicle that has a drive motor as a drive source, the drive motor being driven by energy stored in the in-vehicle battery;
a charging facility information acquisition unit that acquires information regarding a charging facility capable of charging the in-vehicle battery;
a travelable area acquisition unit that, based on the maximum charging energy amount acquired by the maximum energy amount acquisition unit and the information regarding the charging facility acquired by the charging facility information acquisition unit, acquires a travelable area, within which the vehicle is able to travel from the charging facility by consuming an energy amount corresponding to a predetermined percentage of the maximum charging energy amount; and
a display mode change unit that varies a display mode of the map image based on the acquired travelable area.
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Accused Products
Abstract
A vehicular travel guidance apparatus and method are provided. The apparatus includes a map image display unit that displays a map image on a display device and a maximum energy amount acquisition unit that acquires a maximum charging energy amount of an in-vehicle battery. The apparatus further includes a charging facility information acquisition unit that acquires information regarding a charging facility capable of charging the in-vehicle battery. Also included is a travelable area acquisition unit that acquires a travelable area, within which the vehicle is able to travel from the charging facility by consuming an energy amount corresponding to a predetermined percentage of the maximum charging energy amount. The apparatus also includes a display mode change unit that varies a display mode of the map image based on the acquired travelable area.
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Citations
11 Claims
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1. A vehicular travel guidance device comprising:
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a map image display unit that displays a map image on a display device; a maximum energy amount acquisition unit that acquires a maximum charging energy amount of an in-vehicle battery of a vehicle that has a drive motor as a drive source, the drive motor being driven by energy stored in the in-vehicle battery; a charging facility information acquisition unit that acquires information regarding a charging facility capable of charging the in-vehicle battery; a travelable area acquisition unit that, based on the maximum charging energy amount acquired by the maximum energy amount acquisition unit and the information regarding the charging facility acquired by the charging facility information acquisition unit, acquires a travelable area, within which the vehicle is able to travel from the charging facility by consuming an energy amount corresponding to a predetermined percentage of the maximum charging energy amount; and a display mode change unit that varies a display mode of the map image based on the acquired travelable area. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicular travel guidance method, the method comprising:
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displaying a map image on a display device; acquiring a maximum charging energy amount of an in-vehicle battery of a vehicle that has a drive motor as a drive source, the drive motor being driven by energy stored in the in-vehicle battery; acquiring information regarding a charging facility capable of charging the in-vehicle battery; acquiring, based on the maximum charging energy amount acquired at the maximum energy amount acquisition step and the information regarding the charging facility acquired at the charging facility information acquisition step, a travelable area, within which the vehicle is able to travel from the charging facility by consuming an energy amount corresponding to a predetermined percentage of the maximum charging energy amount; and varying a display mode of the map image based on the acquired travelable area. - View Dependent Claims (9)
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10. A program that causes a computer to perform the functions of:
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displaying a map image on a display device; acquiring a maximum charging energy amount of an in-vehicle battery of a vehicle that has a drive motor as a drive source, the drive motor being driven by energy stored in the in-vehicle battery; acquiring information regarding a charging facility capable of charging the in-vehicle battery; acquiring, based on the maximum charging energy amount acquired by the maximum energy amount acquisition function and the information regarding the charging facility acquired by the charging facility information acquisition function, a travelable area, within which the vehicle is able to travel from the charging facility by consuming an energy amount corresponding to a predetermined percentage of the maximum charging energy amount; and varying a display mode of the map image based on the acquired the travelable area. - View Dependent Claims (11)
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Specification