US 6,093,974 A · Control device for restarting engine of vehicle

Abstract

A control device for restarting an engine is configured to engage a forward clutch of an automatic transmission quickly, with little shock and without involving a special cost for restarting the engine. When the engine is restarted, a way for supplying an oil is changed in accordance with a leaving amount of an oil from an oil passage with respect to the forward clutch of the automatic transmission or an oil temperature. A time for executing a quick pressure increase control and a control target pressure is changed in accordance with a leaving amount of the oil or the oil temperature. Further, the quick pressure increase control is started at a timing when an engine revolution (a rotational speed of an oil pump) is equal to or greater than a predetermined value.

Claims34

Dependent claims

A control device for restarting an engine mounted on a vehicle comprising:

stop means for automatically stopping the engine in accordance with a stop command under a predetermined stop condition;
restart means for restarting the engine in accordance with a restart command;
engagement means for supplying a fluid to a fluid passage of a predetermined clutch of a transmission mounted on the vehicle from a fluid pump when the engine is restarted, thereby engaging the clutch;
fluid leaving amount detecting means for detecting a fluid leaving amount from a fluid passage of the predetermined clutch;
and
fluid supply control means for changing a fluid supply method for engaging the clutch in accordance with the fluid leaving amount.

3 more elements

Dependencies are inferred from the claim text.

Control device for restarting engine of vehicle

Life of this patent

Control device for restarting engine of vehicle

Life of this patent

Abstract

Claims34