Stop the internal combustion engine control apparatus and method

The present invention provides an internal combustion engine stop control device, which can prevent the generation of noise and vibration when the engine is stopped, and the piston can be accurately stopped at a predetermined position. Engine of the present invention (3) of the stop control means (1) In order after the engine (3) is stopped so that the piston (3d) stopped at a predetermined position, the throttle valve (13a) is controlled to a second predetermined degree of opening of the second ICMDOF2 before the control level (step 42), the implementation of the throttle (13a) of the first stage is controlled to a small opening degree control target ICMDOFPRE first stage control (step 34). In addition, with the target stop control start rotational speed changes NEICOFREFN amended accordingly set a first stage control start rotation speed NEICOFPRE a second control target opening ICMDOFPRE (step 71,85), whereby the start of the second stage control the initial condition is stable.