Adjusting device for a vehicle part which is movable relative to a body of a vehicle, in particular a vehicle door or a vehicle tailgate, comprising: • a drive arrangement • having a drive unit and • at least one movement state sensor for detecting a movement state of the drive unit and for outputting corresponding movement state signals, • an adjusting element, which is displaceable relative to the drive arrangement by means of the drive unit, and • a control unit, associated with the drive arrangement, for activating and deactivating the drive unit, wherein the control unit has a signal input to which the at least one movement state sensor is connected for transmitting the movement state signals to the control unit, and wherein the control unit is designed to actuate the drive unit according to the actual movement state if the movement state signals transmitted to the control unit by the movement state sensor indicate an actual movement state of the drive unit which deviates from a target movement state, wherein the target movement state is a rest state of the drive unit or a predetermined movement state of the drive unit, wherein the control unit is further designed to distinguish a movement pattern of a manual actuation of the vehicle part which is movable relative to the body of the vehicle, detected by the movement state sensor, from a movement pattern of a gravity-induced actuation of the vehicle part which is movable relative to the body of the vehicle, detected by the movement state sensor, characterized in that as distinguishing criterion an acceleration detected by the movement state sensor is used with which acceleration the vehicle part which is movable relative to the body of the vehicle is set in motion, in that the control unit is further designed to actuate the drive unit according to the actual movement state only if a movement pattern of the actual movement state at the start of a movement of the vehicle part which is movable relative to the body of the vehicle fulfils at least one predetermined condition as to the acceleration, namely that it corresponds to the movement pattern of the manual actuation and not to the movement pattern of the gravity-induced actuation of the vehicle part which is movable relative to the body of the vehicle, and in that a brake device is associated with the drive unit, wherein the brake device is a permanently acting brake device. • a drive arrangement • having a drive unit and • at least one movement state sensor for detecting a movement state of the drive unit and for outputting corresponding movement state signals, • having a drive unit and • at least one movement state sensor for detecting a movement state of the drive unit and for outputting corresponding movement state signals, • an adjusting element, which is displaceable relative to the drive arrangement by means of the drive unit, and • a control unit, associated with the drive arrangement, for activating and deactivating the drive unit, wherein the control unit has a signal input to which the at least one movement state sensor is connected for transmitting the movement state signals to the control unit, and wherein the control unit is designed to actuate the drive unit according to the actual movement state if the movement state signals transmitted to the control unit by the movement state sensor indicate an actual movement state of the drive unit which deviates from a target movement state, wherein the target movement state is a rest state of the drive unit or a predetermined movement state of the drive unit, wherein the control unit is further designed to distinguish a movement pattern of a manual actuation of the vehicle part which is movable relative to the body of the vehicle, detected by the movement state sensor, from a movement pattern of a gravity-induced actuation of the vehicle part which is movable relative to the body of the vehicle, detected by the movement state sensor, characterized in that as distinguishing criterion an acceleration detected by the movement state sensor is used with which acceleration the vehicle part which is movable relative to the body of the vehicle is set in motion, in that the control unit is further designed to actuate the drive unit according to the actual movement state only if a movement pattern of the actual movement state at the start of a movement of the vehicle part which is movable relative to the body of the vehicle fulfils at least one predetermined condition as to the acceleration, namely that it corresponds to the movement pattern of the manual actuation and not to the movement pattern of the gravity-induced actuation of the vehicle part which is movable relative to the body of the vehicle, and in that a brake device is associated with the drive unit, wherein the brake device is a permanently acting brake device.