A device for capturing a refueling process is described, in which the device has a pressure signal input that is equipped to receive a pressure signal, which reproduces the pressure in a tank; a comparator that is equipped to compare a capturing signal to at least one minimum value; and includes a status output that is connected to the comparator. The status output is equipped to emit a refueling signal when the received capturing signal is more than the minimum value. The refueling signal indicates that the refueling process is taking place. The capturing signal corresponds to the pressure signal and/or the first time derivative of the pressure signal. Also described is a controller, a corresponding control method and the use of a tank pressure sensor, which include each of the features of the device and the method.