Abstract: A method for generating a gauging curve for a hollow body containing a liquid. The curve including a set of measurement points for a liquid level inside the hollow body, and the curve approaching an optimum gauging curve. The method includes, for several different partial filling volumes of the hollow body, calculating an average center of mass of a corresponding free liquid surface for various inclinations of the hollow body, in terms of both amplitude and direction. The method further includes generating a gauging curve that passes substantially through each of the average centers of mass.

Abstract: Method for simulating the ventilation of a liquid tank (1,101), in particular a liquid fuel tank of a vehicle, comprising an internal volume (3,103), a wall (2,102) that defines said internal volume (3,103), and a set of valves (4a,4b;104) for ventilation of the internal volume, said method comprising the calculation of a maximum liquid volume that can be ventilated (14,114) for a maximum angle of inclination of the tank (1,101).Such method also comprises the calculation of at least one maximum liquid volume that can be ventilated (14,114) for at least one intermediate angle of inclination below said maximum angle, but above zero.

Abstract: Method for simulating the gauging of a hollow body intended to contain a liquid and that comprises the following steps: for several different partial filling volumes of said hollow body, calculating the centre of mass of the corresponding free liquid surface; and generating a gauging curve that passes substantially through each of said centres of mass.