Patent ID: 7354379
Filing Date: 2008-04-08
Classification: F02N,Y02T,Y10T

Abstract:
1. An engine automatic stop restart control apparatus mounted on a motor vehicle, the engine automatic stop restart control apparatus performing automatic engine stop control to automatically stop an engine in response to a driver's depression of brake as one of preset engine stop conditions and performing automatic engine restart control to automatically restart the engine in response to the driver's release of brake as one of preset engine restart conditions, the engine automatic stop restart control apparatus comprising: an automatic drive control module that performs vehicle automatic stop control to automatically stop the motor vehicle upon satisfaction of predetermined vehicle stop conditions; an engine stop condition judgment module that determines whether all the preset engine stop conditions except the driver's depression of brake are satisfied after an automatic stop of the motor vehicle by the vehicle automatic stop control of the automatic drive control module; and an engine stop control module that performs the engine automatic stop control to automatically stop the engine when the engine stop condition judgment module determines satisfaction of all the preset engine stop conditions except the driver's depression of brake, wherein the predetermined vehicle stop conditions include at least a condition that a vehicle speed of the motor vehicle is not higher than a preset reference vehicle speed and that a distance between the motor vehicle and a preceding vehicle is not longer than a preset reference distance, the automatic drive control module controls the motor vehicle to be driven at a constant speed or to follow the preceding vehicle and, in response to a stop of the preceding vehicle, controls the motor vehicle to automatically stop with maintaining the preset reference distance from the preceding vehicle.