Patent ID: 7273033
Filing Date: 2007-09-25
Classification: F02D,F02P,Y02T

Abstract:
1. An engine control device comprising: a rotational speed detection device for detecting an engine speed of an engine; a timer configured to measure a time from a start of the operation of the engine; a mode judgment device that is configured to determine from a detection value of the rotational speed detection device that the engine speed has been changed from a starting mode to a normal mode; and an ignition timing control device configured to calculate, when the mode judgment device determines that the engine speed has been changed from the starting mode to the normal mode, a difference between the detected engine speed and a predetermined target engine speed, and to retard ignition timing when the detected engine speed is larger than the target engine speed, the ignition timing control device being configured to control the ignition timing based on the calculated value; wherein the ignition timing control device is configured to delay retarding of the ignition timing until the time measured by the timer exceeds a specified time required for a change of the engine condition from the start of its operation to the normal mode.