METHOD FOR DETERMINING THE WATER CONTENT OF A MIXED ALCOHOL/GASOLINE FUEL IN AN INTERNAL COMBUSTION ENGINE, AND DEVICE FOR IMPLEMENTING SAME

摘要

The invention relates to a method for determining the water content of a mixed alcohol/gasoline fuel in an internal combustion engine of a vehicle, which includes the steps of: determining a first alcohol-content value of the fuel from a combustion ratio measurement; determining a second alcohol-content value of the fuel from a measurement performed by a sensor for measuring the electrical conductivity of the fuel; comparing said first value and said second value; and, when said first value is lower than said second value, determining the water content of the fuel by assigning a predetermined water-content value associated with the pair consisting of said first and said second alcohol-content values.