The invention relates to a method for operating a
system for the automated uncoupling of two rail vehicles (10, 20), wherein each rail vehicle (10, 20) has at least one controllable
coupling (11, 21) at each end of the vehicle and a control computer (12, 22) that controls this at least one
coupling (11, 21) and is equipped for data communication by means of an address that uniquely identifies the respective rail vehicle (10, 20), and wherein in a first method step, a released position of each
coupling (11, 21) that causes the uncoupling of both rail vehicles (10, 20) is determined by means of digital command transmission to at least one of the two control computers (12, 22).21) is realized. This is intended to achieve, in a cost-effective manner, the resetting of an automated rail vehicle coupling from a released buffer position to a coupled position and at the same time achieve a high process reliability of
train formation processes in
shunting yards. According to the invention, this is achieved by determining, in subsequent further process steps, first and second geoposition data indicating the geographical positions of both rail vehicles (10, 20) and exchanging them between the control computers (12, 22) of both rail vehicles (10, 20) by means of a data
relay (30). In the control computer (12) of the first of the two rail vehicles (10, 20), the distance (D) between the two rail vehicles (10, 20) is determined from the determined first geoposition data of the first rail vehicle (10) and the second geoposition data of the second rail vehicle (20) received from the data
relay (30).and in this control computer (12, 22) a
control signal is generated to move the at least one coupling (11, 21) of the first of the two rail vehicles (10, 20) into a coupling-ready position as soon as the determined distance (D) between the two rail vehicles (10, 20) exceeds a predefinable
limit value.