START CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

A start control apparatus for a port injection internal combustion engine (1) starts the engine (I) by supplying fuel to an intake stroke cylinder in which a piston (5) is stopped in an intake stroke, when a predetermined start condition is fulfilled. The start control apparatus includes a throttle valve (20). The position of the throttle valve (20) is switchable between a closing position (P1) in which the throttle valve (20) decreases a flow passage sectional area of an intake port (3a), and an opening position (P2) in which the throttle valve (20) fully opens the intake port (3a). The, start control apparatus determines whether a piston (5) in the intake stroke cylinder is stopped in a predetermined crank angle range, when the predetermined start condition is fulfilled. When it is determined that the piston (5) in the intake stroke cylinder is stopped in the predetermined crank angle range, the start control apparatus switches the position of the throttle valve (20) to the closing position (P1), and then, starts the engine (1).