Vehicle referencing system

A vehicle referencing system, comprising:

• a plurality of electrified vehicles, each equipped with a battery for exchanging electric power with an electric motor serving as a motive power source;
• a plurality of external charging and discharging devices that is fixedly installed, and that enables charging and discharging of the batteries by the electrified vehicles being connected;
• and
• an external control device that is different from the electrified vehicles and the external charging and discharging devices, and that acquires various types of information from each of the electrified vehicles and the external charging and discharging devices via communication and also controls operations of the external charging and discharging devices, wherein:
• the external control device identifies the electrified vehicles that are connected to the external charging and discharging devices, by referencing
• connection information of connection to the external charging and discharging devices, position information of the electrified vehicles, charging and discharging execution state of the batteries, and remaining charge of the batteries, as the various types of information that are acquired from the electrified vehicles, and
• connection information of connection to the electrified vehicles, position information of the external charging and discharging devices, the charging and discharging execution state, and the remaining charge, as the various types of information that are acquired from the external charging and discharging devices;
• and
• when the external control device determines that the charging and discharging execution state and the remaining charge of at least two electrified vehicles among the electrified vehicles that are each connected to the external charging and discharging devices are the same, the external control device controls the external charging and discharging devices such that the charging and discharging execution state is different between the electrified vehicles regarding which the charging and discharging execution state and the remaining charge are determined to be the same.