ENGINE CONTROL SYSTEM INCLUDING DUAL CONTINUOUS VARIABLE VALVE DURATION DEVICE AND GPF FORCED REGENERATION METHOD USING THE ENGINE CONTROL SYSTEM

An engine control system includes an engine, an intake valve, an ignition plug mounted in a combustion chamber, an exhaust valve; a dual continuously variable valve duration device configured to adjust an intake duration of the intake valve and an exhaust duration of the exhaust valve; a turbine mounted downstream of the engine; a warm-up catalyst (WCC) mounted downstream of the turbine; a gasoline particulate filter (GPF) mounted downstream of the warm-up catalyst; and a controller operably connected to the ignition plug and the dual continuously variable valve duration device and configured to adjust an ignition timing of the ignition plug, the intake duration, and the exhaust duration based on a driving condition of a vehicle, wherein under a condition that lambda (λ) is 1, the controller is configured to adjust the exhaust duration so that an exhaust valve open timing is retarded, and an intake valve close (IVC) timing is maintained to maintain a valve overlap period.