Active purge system and active purge method
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsYoung-Kyu OH, Keum-Jin PARK, Se-Geun KIM
Life of this patent
Estimating the term…
Abstract
An active purge system may include: a canister to collect therein an evaporation gas evaporated from a fuel tank; a purge line to connect the canister to an intake pipe; a purge pump to pressurize the evaporation gas to allow the evaporation gas to move from the canister to the intake pipe; a purge valve installed on the purge line to be located between the purge pump and the intake pipe; and an engine connected to the intake pipe. In particular, the engine includes an injector installed on a cylinder head, an intake valve, and an exhaust valve.
Claims14
An active purge system, comprising:
- a canister configured to collect therein an evaporation gas evaporated from a fuel tank;
- a purge line configured to connect the canister to an intake pipe;
- a purge pump configured to pressurize the evaporation gas to allow the evaporation gas to move from the canister to the intake pipe;
- a purge valve installed on the purge line located between the purge pump and the intake pipe;
- and
- an engine connected to the intake pipe,
- wherein the engine includes:
- an injector installed on a cylinder head, an intake valve, and an exhaust valve.
An active purge method of processing evaporation gas through an active purge system, the active purge method comprising:
- varying a fuel injection timing by an injector and an ignition timing by a spark plug based on revolutions per minute (RPM) of an engine;
- calculating, by a controller, a target purge amount to be processed, based on evaporation gas collected in a canister;
- operating a purge pump at a specific RPM and a purge valve with a specific opening degree amount and a specific opening or closing timing so as to satisfy the target purge amount;
- and
- reducing a fuel injection amount from the injector and retarding or advancing the ignition timing by the spark plug based on an amount of evaporation gas introduced into an intake pipe via operations of the purge pump and the purge valve.
Dependencies are inferred from the claim text.