The continuous valve timing control system and method of the variable valve duration engine is started.
Is provided with the present is carried out continuously in the intake variable valve timing (CVVT) according to the example apparatus of the invention, the exhaust two-stage variable valve duration (VVD) apparatus and a continuously variable valve timing (CVVT) the valve timing control of the turbo-engine with the device method includes divided into a plurality of control areas in accordance with the engine speed and load; If the step of the control area, the first area, applying the maximum duration of the intake valve, and applying a long duration to control the exhaust valve so as to limit the overlap; Applying a long duration in the control region if the second region, and advancing the intake valve closing (IVC) timing, the exhaust valve, and controlling to maintain the overlap to the maximum; If the step of the control area, the third region, and applying the long duration of the exhaust valves and advancing the intake valve closing (IVC) timing and exhaust valve closing (EVC) timing; If the step of the control area, a fourth area, applying a short duration to the exhaust valve and close to the exhaust valve closing (EVC) timing at the top dead center; If the step of the control area, the fifth region, opening the throttle valve to a maximum and apply the short duration of the exhaust valve and the exhaust valve opens late (EVO) timing; And the step of the back control region to the sixth region, opening the throttle valve to a maximum and applying the long duration of the exhaust valve, and advancing the exhaust valve opening (EVO) timing and proximity of the exhaust valve closing (EVC) timing at the top dead center; It may contain.