Variable valve actuation system of internal combustion...

Details Variable valve actuation system of internal combustion... Variable valve actuation system of internal combustion...

2009-02-17

2011-10-11

Gimie, Mahmoud (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S559100, C123S090160

Reexamination Certificate

active

08036806

ABSTRACT:
In a control apparatus of a supercharged internal combustion engine, a variable valve actuation system interacts with an engine control system. A controller is configured or programmed to increase an intake-valve lift by a variable valve lift mechanism, which is provided for variably controlling at least the intake-valve lift of engine valves, when starting from a vehicle stand-still state or when accelerating from an idling state or a light load state. The controller is further configured or programmed to increase a valve overlap of intake and exhaust valves by a variable phase control mechanism, which is provided for variably phase-shifting a central phase angle of a valve lift characteristic curve of at least one of the intake and exhaust valves, while increasing a boost pressure of intake air introduced into an engine cylinder by a supercharging device, after the intake-valve lift has been increased.

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