| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress, in a control device of a direct-injection gasoline engine mounted to an idling stop vehicle, a torque step in injection mode changing from compression stroke injection to an intake stroke injection.SOLUTION: A control device is for a direct-injection gasoline engine which is mounted to a vehicle having an idling stop function. When engine restarting is demanded, the control device opens a throttle valve to such a first opening level A1 that pressure in an intake pipe becomes a pressure corresponding to an atmospheric pressure. Then, when engine rotation speed NE becomes equal to or higher than a predetermined rotation speed NEst for determining start, the control device closes the throttle valve to a second opening level A2 which is smaller than the first opening level A1, and after performing compression stroke injection by a predetermined number of times during engine restarting, executes control for changing an injection mode from the compression stroke injection to intake stroke injection.</p> |
