Patent ID: 8725331

Claim:
A charge-discharge management system for a vehicle that runs using electricity stored in a battery, the charge-discharge management system comprising: a charge-discharge schedule creation unit configured to create a charge-discharge schedule of the battery for a travel route of the vehicle according to the travel route of the vehicle and a condition of at least one of the vehicle and a road, so that a charge amount of the battery falls within a predetermined range in the travel route; a charge-discharge schedule correction unit configured to divide the travel route into a plurality of sections, make a comparison between the charge amount actually in the battery and the charge amount in the charge-discharge schedule at every section of the plurality of sections, thereby providing a result of the comparison, and correct the charge-discharge schedule for subsequent sections according to the result of the comparison, wherein the subsequent sections are sections subsequent to where the comparison is made; a charge-discharge schedule re-creation unit configured to re-create the charge-discharge schedule in response to an occurrence of a change in a via-point of the travel route or a change in the amount of load carried by the vehicle when the vehicle is traveling along the travel route; and a management device configured to: propose a plurality of additional electric power consumption ways to a user of the vehicle when an over-charged point, at which the battery is to be over-charged, is present in the re-created charge-discharge schedule; add to the re-created charge-discharge schedule an additional electric power consumption way that is selected by the user of the vehicle from the plurality of proposed additional electric power consumption ways; propose a plurality of additional electric power charging ways to the user of the vehicle when an over-discharged point, at which the battery is to be over-charged, is present in the re-created charge-discharge schedule; and add to the re-created charge-discharge schedule an additional electric power charging way that is selected by the user of the vehicle from the plurality of proposed additional electric power charging ways, wherein electric power transmission to or charging from an infrastructure external to the vehicle is addable to the charge-discharge schedule.