Variably operated valve apparatus of internal combustion engine

The invention provides a variably operated valve apparatus of an internal combustion engine which are capable of suppressing the variation in the compression at the time of the engine start without need to excessively enlarge the conversion angle of the closure timing of intake valve. At a step S11, the open-and-closure timings of exhaust valve by means of exhaust VEL 1 and intake valve by means of intake VTC 3 at default positions in EO1, IO1, IC1 respectively. At a step S12, whether the present engine state is the start condition due to the spontaneous combustion is determined. At a step S13, a stop position of a piston is detected. At a step S14, whether the cylinder in the compression stroke falls within a range of [theta]p+-[Delta][theta] after BDC is determined. At a step S15, control signals are output to exhaust VEL 1 and intake VTC 3 for the valve open-and-closure timings of exhaust valve and intake valve to be converted to the default positions. At a step S16, the fuel injection and the ignition control for one of the cylinders in the expansion stroke is performed to start the spontaneous combustion. A a step S21, the ordinary control using the control map is performed.