Patent ID: 8751077
Filing Date: 2014-06-10
Classification: B60L,G01C,Y02T,Y04S

Abstract:
1. A route planning device installed in a moving object equipped with a motor driven with a battery, comprising: an input unit via which a user input is entered by a user; a minimum-cost route calculation unit that calculates, in response to a destination input indicating a destination entered by the user via the input unit, costs of a plurality of road links included in map information and calculates a minimum-cost route achieving a smallest sum of the costs, which extends from a current position of the moving object to the destination; a position calculation unit that determines the current position by using a sensor installed in the moving object; a search unit that searches through the map information for a plurality of facilities located near the minimum-cost route, where the battery can be charged or replaced; a guided route calculation unit that sets a waypoint on the minimum-cost route via which the moving object can be guided to each of the plurality of facilities, and calculates in advance a guided route from the waypoint to the each of the plurality of facilities and a first power requirement indicating an amount of power required to travel through the guided route; a facility designating unit that designates a facility among the plurality of facilities as a target facility to which the moving object is to be guided, based upon third power requirements each calculated by adding a second power requirement, indicating an amount of power required to allow the moving object to travel from the current position on the minimum-cost route to the waypoint, to the first power requirement having been calculated in advance and remaining power in the battery; and a display unit at which a position of the target facility and the guided route corresponding to the target facility are displayed.