US Patent 10501084 Vehicle control system

A vehicle control system includes an external recognition means, a limit-distance calculation means, a relative-speed calculation means, and a required detection distance calculation means. When it is determined that the detectable limit distance is smaller than the required detection distance, the driver is notified that the lane change cannot be performed. When it is determined that the detectable limit distance is larger than the required detection distance, an automatic lane change of the vehicle is performed. The limit-distance calculation means detects a plurality of objects, which are sequentially detectable from the vehicle, and, based on the objects, the detectable limit distance is set in a vicinity of a farthest object.