Control method for fuel filling system

A control method for a fuel filling system that fills fuel from an external filling device to a fuel tank equipped to a fuel cell vehicle, the method comprising the steps of:

• determining a filling mode based on a detected value of a vehicle sensor provided to the fuel cell vehicle and detecting a value of a predetermined physical quantity, wherein the physical quantity comprises a measure of physical characteristics of the state of fuel inside of the fuel tank, and separate unique information of the fuel tank not being detected by the sensor, wherein the unique information comprises a measure of characteristics of the fuel tank that are independent of the fuel inside the fuel tank, and then filling fuel to the fuel tank in the filling mode thus determined;
• predicting the value of the physical quantity during filling of fuel based on a detected value of an external sensor provided to the external filling device and the unique information, wherein the predicted value of the physical quantity is successively calculated during the filling in the step of predicting;
• and
• confirming continuously whether the detected value of the sensor and the predicted value in the step of predicting match, while filling fuel in the filling mode determined based on the unique information, and
• wherein the filling of fuel in the filling mode determined based on the unique information is interrupted, in the case of inconsistency between the detected value and the predicted value being confirmed in the step of confirming.