CONVEYANCE VEHICLE SYSTEM

A conveyance vehicle system having an increased efficiency of loading an article from a conveyance vehicle into a loading opening of an automated warehouse. A conveyance vehicle system (1) includes a stocker (11), a conveyance vehicle (3), and a conveyance vehicle controller (27). The stocker (11) includes racks (38), a loading port (13), and a stocker controller (25). The conveyance vehicle (3) loads an article (W) into the loading port (13) of the stocker (11). The conveyance vehicle controller (27) assigns the conveyance vehicle (3) with an article conveyance command for conveying the article to the stocker (11). The stocker controller (25) receives a predicted conveyance command before the article (W) is loaded from the conveyance vehicle (3) into the stocker (11). The predicted conveyance command contains ID information of the article (W) and information indicating whether or not the article (W) is to be loaded into a rack (38).