PROCESS AND DEVICE FOR DETERMINING THE RESIDUAL AMOUNT OF FUEL IN A MOTOR VEHICLE FUEL SYSTEM

摘要

A process and device are disclosed for determining the amount of fuel in the fuel tank of a motor vehicle. The fuel tank has a main reservoir fitted with a filling level meter for determining the amount of fuel contained therein, and a residue reservoir having a substantially smaller volume than the main reservoir, closed in itself and supplied by a pump with fuel from the main reservoir. After the main reservoir is emptied, the residual amount of fuel still contained in the reservoir is calculated as the difference between a defined volume of the reservoir (12) and fuel consumption summed over time.