LIGHT DISTRIBUTION CONTROL SYSTEM AND LIGHT DISTRIBUTION CONTROL METHOD

Vehicle-external recognition is performed, and light distribution control over headlights mounted on a vehicle is performed based on the vehicle-external recognition. A configuration includes an external sensor that acquires information about an object around the vehicle, and a ground speed acquisition unit that acquires a ground speed of the object based on an output from the external sensor. An emission range of the headlights is variably set based on the ground speed acquired by the ground speed acquisition unit.