Door opening and closing apparatus

A door opening and closing apparatus comprising:

• a first drive unit that opens and closes a front side door;
• a second drive unit that opens and closes a rear side door;
• a first detection section that repeatedly detects a distance to a first detection object including a moving object present in a first detection range, the first detection range being set on a side of a vehicle body;
• a second detection section that repeatedly detects a distance to a second detection object including the moving object present in a second detection range, the second detection range being set on the side of the vehicle body on a front side of the first detection range;
• and
• a control unit that, when the moving object is determined based on a detection result of the first detection section and a detection result of the second detection section to have performed a predetermined movement having a plurality of stages, drives at least one of the first drive unit and the second drive unit to open and close a corresponding one of the front side door and the rear side door, wherein
• the control unit determines that, based on the detection result of the first detection section and the detection result of the second detection section, from which one of a rear, a front, and the side of the vehicle body the moving object is approaching, and according to a result of the determination, executes one of first processing of driving only the first drive unit, second processing of driving only the second drive unit, and third processing of driving both of the first drive unit and the second drive unit.