Method for Removing Residual Purge Gas
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsTae-Ho Ahn, Jeong-Ho Seo, Young-Kyu Oh
Life of this patent
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Abstract
The present disclosure relates to a method for removing residual purge gas in operating an active purge system and includes determining evaporation gas purge stop in a control unit, closing a PCSV mounted on a purge line connecting a canister and an intake pipe, and determining whether all of the evaporation gas flowed into the intake pipe is flowed into a combustion chamber, so that all of the evaporation gas flowed into an intake pipe during travelling can be flowed into and combusted in the combustion chamber.
Claims20
A method for removing residual purge gas in operating an active purge system, the method comprising determining that all evaporation gas flowed into an intake pipe through a PCSV (pressure control solenoid valve) is flowed into a combustion chamber when an integrated value of an amount of an air supplied to the combustion chamber after the PCSV is closed is equal to or greater than a first predetermined value or when a time elapsed after the PCSV is closed exceeds a second predetermined value.
A method for removing residual purge gas in operating an active purge system, the method comprising:
- determining an evaporation gas purge stop;
- closing a PCSV (pressure control solenoid valve) mounted on a purge line connecting a canister and an intake pipe;
- and
- determining whether all of the evaporation gas flowed into the intake pipe is flowed into a combustion chamber.
An apparatus for use with a vehicle, the apparatus comprising:
- a canister;
- an intake pipe;
- a purge line connecting the canister and the intake pipe;
- a combustion chamber;
- a pressure control solenoid valve (PCSV) mounted on the purge line;
- and
- a control unit configured to determine an evaporation gas purge stop, close the PCSV, and determine whether all of the evaporation gas flowed into the intake pipe is flowed into the combustion chamber.
Dependencies are inferred from the claim text.