Patent ID: 7275510
Filing Date: 2007-10-02
Classification: F01P,F02D,F02N,Y02T

Abstract:
1. A stop-time control apparatus of an internal combustion engine in which fuel is injected into a combustion chamber, and in which an automatic stop-automatic startup control of automatically stopping a combustion operation if an automatic stop condition is met, and of automatically restarting the combustion operation if an automatic start condition is met, is performed, the control apparatus comprising: an automatic stop determining portion that determines whether the combustion operation has been automatically stopped; and a pre-startup cooling portion that drives a cooling device of the internal combustion engine to cool the internal combustion engine during a stop of the combustion operation if the automatic stop determining portion determines that the combustion operation has been automatically stopped; and a high-temperature determining portion that determines whether the internal combustion engine is in a high-temperature state such that a pre-ignition would result if the automatic startup control is executed without any change from a present state, wherein the pre-startup cooling portion drives the cooling device of the internal combustion engine if the high-temperature determining portion determines that the internal combustion engine is in the high-temperature state during an automatically-caused stop of the combustion operation.