Safety is a high priority for a hydrogen refueling station. Here we propose a method to safely refuel a vehicleat optimised speed of filling with minimum information about it. Actually, we identify two major risksduring a vehicle refuelling: over-filling and over-heating. These two risks depend on the temperatureincrease in the tank during refuelling. But the inside temperature is a difficult information to get from thestation point of view. It assumes a temperature sensor in a representative place of the tank and an additionalconnection between the vehicle and the station for data exchange. The refuelling control may not depend onthis parameter only. Therefore, our objective was to effectively control the filling, particularly to avoid thetwo identified risks independently of optional and safety redundant information from the vehicle. For thatpurpose, we defined a maximum filling pressure which corresponds to the most severe following conditions:if the maximum temperature is reached in the tank or if the maximum capacity is reached in the tank. Thismaximum pressure depends on a few filling parameters which are easily available. The method and itspractical applications are depicted.