Abstract: A method for eliminating hydrocarbon vapors generated in a fuel tank of a vehicle powertrain including at least one heat engine, by a canister adapted to absorb the vapors. The method includes detecting movements of the hydrocarbon vapors from the tank to the canister, increasing a counter value when the vapors move from the tank to the canister, and calculating a number of gas volumes passing through the canister when the heat engine is started so as to reduce the value of the counter by purging the gasoline vapors in a direction of the engine.

Abstract: A method for eliminating hydrocarbon vapors generated in a fuel tank of a vehicle powertrain including at least one heat engine, by a canister adapted to absorb the vapors. The method includes detecting movements of the hydrocarbon vapors from the tank to the canister, increasing a counter value when the vapors move from the tank to the canister, and calculating a number of gas volumes passing through the canister when the heat engine is started so as to reduce the value of the counter by purging the gasoline vapors in a direction of the engine.

Abstract: An activated carbon filter for a fuel tank supplying a heat engine of an automobile, the carbon filter including a housing including an inlet port capable of being connected to the fuel tank, a discharge port capable of being connected to the heat engine, and a vent port. The housing includes at least one internal wall dividing the inner volume thereof into at least two intercommunicating chambers, at least one activated carbon chamber containing activated carbon capable of trapping hydrocarbon gases, and a storage chamber forming a storage volume of a gas stream entering through the inlet port of the housing.