DOOR OPENING AND CLOSING ASSISTING APPARATUS

A door opening and closing assisting apparatus includes: an information obtainer that obtains information on an opening and closing velocity of a door on a vehicle; a door actuator that performs driving for assisting the opening and closing operation of the door; a target assisting power computer that computes a target assisting power for assisting the opening and closing operation of the door; and a controller that performs driving control for the door actuator based on the target assisting power. The target assisting power computer calculates, based on the opening and closing velocity of the door obtained by the information obtainer, a standard assisting power which is assisting power required to maintain the opening and closing velocity, makes a correction by decreasing the calculated standard assisting power according to a predetermined rule, and sets the standard assisting power after the decrease correction as the target assisting power.