Patent attributes
An automatic door opening and closing system includes a distance measuring device measuring a distance between an external surface of a swing door of a vehicle and an object lying on a circumference of the swing door, a door lock device locking the swing door, a drive device opening and closing the swing door, a door opening operation input device receiving an operation to cancel the locking of the swing door and to open the swing door, and a control device controlling the door lock device and the drive device based on the distance measured in response to receiving the operation. The distance measuring device includes a plurality of distance sensors placed dispersively over the swing door, a measurement target by the distant measuring device including a whole of the external surface of the swing door.