Method for communication between filling device and vehicle

The invention relates to a method for communicating between a filling device (2) and a vehicle (4), comprising the following steps: coupling (28) the filling device (2) to a tank (6) of the vehicle (4) by means of a tank long tube (10), providing (30) pressurized fuel on the tank long tube (10), varying (32) the pressure on the tank long tube (10) by superimposing a predetermined base pressure (22) with a pressure sequence, a first signal to be transmitted is modulated, and a pressure acting on the tank tube (10) is detected (34) by the vehicle (4) and the first signal to be transmitted is extracted (36) from the detected pressure.