Hyundai Motor Company

Kia Motors Corporation

Se-Geun Kim

Young-Kyu Oh

Keum-Jin Park

Dong Jun Shin

Hae-Seung Lee

A method of compensating fuel for each cylinder of an engine during purging may include, compensating a fuel injection time for each cylinder depending on an amount of intake air for each cylinder, an injection pressure of the injector, and an internal pressure of a combustion chamber of the engine; pressurizing a vaporized gas adsorbed into a canister and injecting the pressurized vaporized gas into the intake pipe by operating an active purge pump; and estimating an amount of vaporized gas reaching each combustion chamber and converting the fuel injection time depending on the estimated amount of vaporized gas.

Method of compensating fuel for each cylinder of an engine during purging

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.

Active purge system and active purge method

A method for preventing over discharge of a battery includes steps of: detecting a gradient of a road on which a vehicle is running by a controller, when a battery is discharged under a state that an engine of the running vehicle is operated, detecting a clutch driving state of an engine clutch, which connects or disconnects the engine and an electric motor, after detecting the road gradient, detecting a SOC (State of Charge) of the battery after detecting the clutch driving state of the engine clutch, and carrying out a torque reserve control allowing more torque to be reserved in the engine, using a combination of the road gradient, the clutch driving state, and the battery SOC, such that the battery SOC is not lowered below a certain amount.

Growing community of inventors

Yongin-si, South Korea

Se-Geun Kim