A method for an engine is presented, comprising, following an engine-off event, positioning a first engine cylinder with an intake valve open, opening a canister purge valve; and purging contents of the first engine cylinder to a fuel vapor canister. In this way, uncombusted fuel that may otherwise be emitted from the engine during a prolonged diurnal soak may be stored within the fuel vapor canister, thus decreasing overall vehicle emissions.


    Access

    Download


    Export, share and cite



    Title :

    SYSTEM AND METHODS FOR PURGING RESIDUAL EXHAUST AND UNCOMBUSTED FUEL TO A FUEL VAPOR CANISTER


    Author / Creator :

    Type of media :

    Patent


    Type of material :

    Electronic Resource