AUTOMATIC PARKING SYSTEM, AUTOMATIC PARKING METHOD, AND STORAGE MEDIUM

An upper-limit speed of a vehicle in automatic parking control is set, and the vehicle is caused to park automatically in a parking space at a vehicle speed equal to or lower than the set upper-limit speed. In this case, the upper-limit speed is set according to a vehicle body size of the vehicle, and the upper-limit speed is lower when the vehicle body size of the vehicle is greater than a preset size than when the vehicle body size of the vehicle is less than the preset size.